EP3362714B1 - Poppet valve - Google Patents

Poppet valve Download PDF

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Publication number
EP3362714B1
EP3362714B1 EP16791324.3A EP16791324A EP3362714B1 EP 3362714 B1 EP3362714 B1 EP 3362714B1 EP 16791324 A EP16791324 A EP 16791324A EP 3362714 B1 EP3362714 B1 EP 3362714B1
Authority
EP
European Patent Office
Prior art keywords
closing element
spring
valve
poppet valve
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16791324.3A
Other languages
German (de)
French (fr)
Other versions
EP3362714A1 (en
Inventor
Reiner Schulz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Burckhardt Compression AG
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Burckhardt Compression AG
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Publication date
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Publication of EP3362714A1 publication Critical patent/EP3362714A1/en
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Publication of EP3362714B1 publication Critical patent/EP3362714B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1013—Adaptations or arrangements of distribution members the members being of the poppet valve type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1053—Adaptations or arrangements of distribution members the members being Hoerbigen valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/003—Safety valves; Equalising valves, e.g. pressure relief valves reacting to pressure and temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F16K15/066—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve members

Definitions

  • the invention relates to a Poppetventil for a reciprocating compressor and a reciprocating compressor with such a Poppetventil.
  • the pamphlets US2010 / 0090149A1 and EP2703647A1 each reveal a poppet valve for a compressor. These Poppet valves have a relatively high wear. In addition, this Poppetventil has a relatively high pressure loss.
  • the publication US4489752 discloses another poppet valve for a compressor. Also this Poppet valve has a relatively high wear and a still relatively high pressure loss.
  • the object of the invention is to design a Poppet valve for a reciprocating compressor, which has more advantageous operating characteristics.
  • a poppet valve for a reciprocating compressor comprising a catcher, a valve body with a plurality of inlet channels, each inlet channel opening into a valve seat, and comprising a plurality of closing elements movable in an axial direction, wherein each inlet channel is associated with a closing element is, and wherein the valve seat is arranged in the axial direction opposite the associated closing element, such that the valve seat is closable by the closing element, wherein between the catcher and the closing element, a spring is arranged to the closing element to the valve seat aligned biasing force to effect, wherein the spring surrounds an interior, and wherein the catcher is arranged in the axial direction of a guide member which extends up to a guide part end, wherein the closing element on the guide part in the axial direction movable, is slidably mounted in particular, wherein the spring surrounds the guide member and the closing element in the axial direction along a portion of the outside, so that both the guide member and the closing
  • valve body can have different designs, and can be designed, for example, as a valve seat cover, as a hollow cylindrical body or as a cylinder.
  • the closing element is movable in an axial direction, preferably linearly movable, and preferably slidably mounted on an at least partially guiding element in the interior of the closing element.
  • the closing element can be guided by an inner guide or an outer guide in a linear or in an axial direction.
  • both the guide part and the closing element are arranged in the axial direction along a partial section within the interior of the spring.
  • the Poppet valve according to the invention has the advantage that the retaining structure of a catcher, which holds the guide member, can be made very small, especially when the closing element is guided inside, and when the spring has a tapered outer cross-section towards the catcher.
  • the gap between the guide parts is relatively large.
  • the spring acting on the closing element is arranged such that the spring surrounds the guide member and the closing element in the axial direction along a portion of the outside, so that both the guide member and the closing element along this portion is disposed within the interior of the spring.
  • the Poppet valve according to the invention has the advantage that in an advantageous embodiment, in comparison to known from the prior art Poppet valves, a spring with a larger diameter having.
  • the spring has such a large outer diameter that the spring rests only on a support of the closing element on the closing element, but otherwise has no contact with the closing element. As a result, the wear of spring and closing element is additionally reduced.
  • the outside spring which allows a flow around the windings, the space is compared to a conventional Poppetventil, in which this space of flow is not available, better utilized, ie the flow cross-section in the catcher is significantly increased. This leads to lower pressure losses.
  • the spring itself in proportions, number of turns, wire cross-section, etc. are designed streamlined.
  • the force acting on the closing element spring which surrounds the guide member and the closing element in the axial direction along a portion of the outside, thus advantageously has a low flow resistance, so that a fluid flowing through experiences a low pressure drop.
  • the Poppet valve according to the invention thus has both a low pressure loss and a low wear in a preferred embodiment, which allows a cost-effective and reliable operation.
  • the inventive Poppet valve has the further advantage that the closing elements and springs can be easily and inexpensively replaced.
  • springs compression springs are suitable, which extend in a longitudinal direction, and which have an interior, in which the guide member and the closing element can be arranged at least partially.
  • Particularly suitable is a longitudinally extending coil spring or coil spring having a longitudinally extending interior.
  • This conical or conical configuration, spiraling in plan view has the advantage in a particularly advantageous embodiment that the individual turns of the spring, especially even with a large spring travel, not or only slightly touch each other, which in addition to the wear of the spring reduced.
  • the spring requires a smaller height of Poppetventils, which, inter alia, has the advantage that the dead space in the compressor is smaller.
  • the spring can be designed in a variety of ways, for example, as a plurality of longitudinally successively arranged disc springs with an interior, or a hollow cylindrical rubber spring.
  • the poppet valve according to the invention has a closing element with an end face facing the valve seat, the end face expanding in the axial direction towards the catcher to a maximum extent, the maximum circumference having a circumferential center, and the circumferential center at least comes to rest within the course of the guide member at fully open closing element.
  • the circumferential center is arranged lying even with the closing element closed within the course of the guide member.
  • the piston compressor could be designed as a diaphragm compressor.
  • Fig. 1 shows an end view of a Poppetventils 1 with seven Schliessventilen V, wherein each closing valve V comprises a closing element 4, and wherein the closing elements 4 in Fig. 1 are in the closed state.
  • the Poppetventil 1 comprises a designed as a valve seat cover valve body 2 with a plurality of inlet channels 2a. Each inlet channel 2a opens into a valve seat 7a, wherein the valve seat 7a is closed by a respective closing element 4.
  • FIG. 2 shows a section along the section line BB through the Poppetventil 1 according FIG. 1 , wherein the closing elements 4 in FIG. 2 However, are shown in the open state.
  • the Poppetventil 1 comprises at least the valve seat cover 2 with inlet channels 2a, a catcher 3, in the axial direction A extending guide parts 6, which are fixed to the catcher 3, and a plurality of axially A on each guide member 6 movably mounted, preferably slidably mounted 4.
  • each of the closing elements 4 is associated with a valve seat 7a, wherein the closing elements 4 are arranged in the axial direction A respectively opposite the associated valve seat 7a, and wherein the closing elements 4 are displaceable in the axial direction A, that the valve seat 7a and so that the input channel 2a can be opened or closed.
  • the Poppetventil 1 also includes springs 5 to cause the closing elements 4 to a valve seat 7a and the valve seat cover 2 aligned biasing force.
  • the closing elements 4 are also referred to as Poppet or poppet.
  • the catcher 3 comprises a holding structure 3e, which preferably runs perpendicular to the axial direction A, wherein on the support structure 3e in the axial direction A extending guide members 6 are arranged, on which the closing elements 4 are arranged in the axial direction A movable or linearly movable, and preferably are slidably mounted.
  • the guide members 6 are configured in the form of a hollow cylinder in the illustrated embodiment.
  • the closing elements 4 comprise in the illustrated embodiment, a closing head 4a and a guide portion 4b, wherein the closing element 4 is concentric and along the axis of symmetry has a bore 4c, which forms a sliding bearing with the guide member 6, so that the guide member 6 with respect to the closing element 4 an inner guide formed.
  • the closing head 4a also comprises a support 4f, which is advantageously designed flat.
  • the spring 5 comprises a first spring end 5a and a second spring end 5b, wherein the first spring end 5a rests against the support 4f, and wherein the second spring end 5b is applied directly to the catcher 3 or to a spring support 8 arranged therebetween, by one towards the valve seat 7a effecting biasing force on the closing element 4.
  • the spring 5 has an inner space 5c.
  • the spring 5 encloses the guide part 6 and the closing element 4 in the axial direction A along a portion 4e from the outside, so that both the guide member 6 and the closing element 4 along this portion 4e within the interior 5c of the spring 5 are arranged.
  • the spring 5 has an increasing diameter in the axial direction A towards the valve seat 7a, wherein in a preferred embodiment the spring 5 widens conically.
  • the spring 5 is configured such that the spring 5 touches the closing element 4 only on the support 4f.
  • the widening spring 5 has the advantage that the second spring end 5b has a smaller diameter or a smaller contact surface than the first spring end 5a, with the result that in the region of the catcher 3 a larger component-free intermediate space results, that of the fluid F can be flowed through is.
  • FIG. 2 the fluid flows F1, F2 of two juxtaposed valves V are exemplified.
  • the fluid flows F1, F2 are deflected by the end face 4p of the closing element 4 transversely to the axial direction A, so that the fluid flows F1, F2 flow, for example, as shown, the catcher 3.
  • the intersecting fluid flows F1, F2 flow around in particular parts of the adjacent closing element 4 or its spring 5.
  • the component-free intermediate space in particular the component-free intermediate space widening towards the catcher 3, is advantageous.
  • Particularly advantageous is the arrangement of the springs 5, because they affect the fluid flow F1, F2 only slightly, preferably negligibly slightly.
  • the Poppetventil 1 comprises a plurality of inlet channels 2a with valve seats 7a, and respectively associated with closing elements 4 with springs 5, so that the Poppetventil 1 a sausitziges Poppetventil, or a Poppetventil 1 with a plurality of closing valves V is formed.
  • the Poppetventil 1 as in the Figures 2 and 3 shown, a seat plate 7, which is arranged such that the closing head 4a abuts against it and thereby closes the inlet channel 2a, so that the valve seat 7a in the seat plate 7 and by a part of the Seat plate 7 is formed.
  • the seat plate 7 is due to the valve seat 7a and the acting closing head 4a a Verschleissteil and can be advantageously replaced in a simple manner.
  • FIG. 3 shows that in the Figures 1 and 2 illustrated Poppetventil 1 in a bottom view.
  • FIG. 4 shows the in the Figures 2 and 3 illustrated catcher 3 in detail.
  • the catcher 3 advantageously has a flat or flat holding structure 3e, wherein the holding structure 3e as in the FIGS. 2 to 4 is shown, preferably designed as a grid structure comprising a plurality of struts 3b and node 3a, wherein the guide members 6 are arranged on the node 3a and advantageously exchangeably secured.
  • each node 3a has a bore 3f in which the guide member 6 is fixed.
  • the holding structure 3e shown preferably has large gaps 3c, which has the advantage that the fluid flowing in via the inlet channels 2a can flow unhindered or substantially unhindered through the catcher 3, so that only a very small pressure loss occurs.
  • the catcher 3, as in 3 and 4 illustrated a hollow cylindrical outer wall 3d, which extends in the axial direction A and which surrounds the support structure 3e in the circumferential direction.
  • the catcher 3 thus also acts as a valve protection arrangement, referred to in English as a "valve guard".
  • FIGS. 5 and 6 show a single closing valve V in the FIGS. 1 to 3 Poppet valve 1 shown in detail.
  • the outer surfaces 2b and 7b are in themselves sectional planes, which are not shown hatched for clarity of the other features.
  • the spring 5 has an inner space 5c and is configured and arranged along the partial section 4e such that the spring 5 surrounds both the guide part 6 and the guide section 4b of the closing element 4 from the outside, the spring 5 being directly engaged only at the first spring end 5a the closing element 4 is in contact and rests or rests on the support 4f.
  • the spring 5 is in the side view according to FIG.
  • the support 4f can be configured in a variety of ways, and for example depressions for guiding the first spring end 5a have, or Befest Trents distruskeinen for guiding and / or holding the first spring end 5a.
  • the poppet valve 1 according to the invention has the advantage that a fluid F flowing through experiences only a low flow resistance.
  • the closing element 4 can be seen to have an end face 4g facing the inlet channel 2a, wherein this end face 4g is substantially conical or arrow-shaped running.
  • the front side 4g can be configured in a variety of ways.
  • a Dahlsitzigen Poppetventil 1 that is a Poppetventil 1 comprising a plurality of closing valves V, which is used in combination with a high-pressure gas compressor
  • This embodiment reduces the pressure loss at the end face 4g and / or directs the fluid flow F so transversely to the axial direction A, that this, as from FIG. 2 can be seen through the partial flows F1, F2, after passing through the valve seat 7a, preferably flows through the component-free space and then through a gap 3c of the catcher 3.
  • the closing element 4 can be seen to have a closing head 4 a with an end face 4 g facing the valve seat 7 a, the end face 4 g or the one in FIG FIG. 6 shown cross-section of the closing element 4 in the axial direction A from the inlet channel 2a to the catcher 3 out to a maximum extent 4q extended, so that a maximum outer diameter 4p is formed.
  • the maximum circumference 4q as well as the maximum outside diameter 4p is, for example, also in FIG. 15 vividly illustrated.
  • the maximum outside diameter 4p includes, as shown FIG. 6 those positions of the closing element 4, which have the greatest distance to the axial axis A with respect to a perpendicular to the axial axis A. In FIG.
  • circumferential center M F of the maximum circumference 4q or the maximum outside diameter 4p is shown.
  • This circumferential center point M F is located in the guide inner space 4c of the closing element 4.
  • the attacking in the area of maximum circumference 4q flow forces often cause the largest torque which acts on the closing element. 4
  • the circumferential center M F also forms the center of this attacking torque.
  • the closing element 4 and the guide part 6 are in the valve V, as in FIG. 6 represented configured and arranged mutually adapted so that the guide member 6 to the inlet channel 2a ends at a guide part end 6c, and that the peripheral center M F comes to rest at least with fully open closing element 4 within the course of the guide member 6, that is within the distance in the axial direction A along which the guide member 6 extends to lie, or in other words that at least with fully open closing element 4, the circumferential center M F in the axial direction A is closer to the catcher 3 than the guide part end 6 c of the guide member 6 in FIG. 6 shown is the circumferential center M F spaced by a distance D with respect to the guide part end 6c.
  • This distance D is greater than or equal to 0 mm, at least when the closing element is fully open. This distance D is advantageously greater than or equal to 0 mm, even when the closing element 4 abuts the valve seat 7a.
  • This embodiment has the advantage that the circumferential center or the pivot point M F of a torque acting on the closing element 4, in particular one at the maximum circumference 4q or at the maximum Outside diameter 4p attacking torque is in a range in which the closing element 4 abuts the guide member 6 and is guided by this in the axial direction A. This reduces or prevents tilting of the closing element 4 with respect to the guide member 6, and this also reduces the wear of the guide interior 4c of the closing element 4 and the wear of the guide member 6.
  • the described arrangement thus ensures an excellent linear guide of the closing element 4 in the axial direction A.
  • Dies Linear guide is of particular importance because the closing element in the open state by the fluid flow F and resulting flow turbulence attack different, time-varying and partially larger forces on the closing element 4, which endeavor to divert the closing element 4 from the movement in the axial direction A.
  • Such a deflection of the movement has the consequence that the closing element 4 can strike the valve seat 7a on one side, which considerably increases the wear on the end face 4g of the closing element 4.
  • the wear increases in the guide interior 4c, so that the closing element 4 is performed worse in the axial direction, which in turn wears the front 4g faster.
  • the described embodiment of the closing element in combination with the arrangement of the guide part 6 thus has the advantage that the wear is substantially reduced.
  • FIGS. 7 to 11 show further embodiments of individual closing valves V, which in which in the FIGS. 1 to 3 Poppet valve 1 shown could be used.
  • FIG. 7 shows a second embodiment of a closing valve, wherein the guide member 6 has a spherical end portion 6d, so that the closing element 4th with respect to the guide member 6 in addition to the linear movement or the sliding movement also can perform a tilting movement.
  • the closing element 4 in the closed state can adapt particularly well to the position or the course of the valve seat 7a.
  • FIG. 8 shows a third embodiment of a closing valve.
  • a fluid guide plate 9 Disposed below the valve seat cover 2 is a fluid guide plate 9, which serves to align the incoming fluid F again after passing through the inlet opening 2a and the closing element 4, preferably in a direction of flow substantially parallel to the axis A.
  • the valve seat cover 2 comprises a groove 2b, in which an annular wear part 7 is arranged.
  • the annular wear part 7 has the advantage that it can be replaced particularly easily, and that materials can be used which are suitable for a plate-like configuration, as in FIG. 7 shown with the seat plate 7, less suitable.
  • Suitable materials for the annular wear part 7 are, for example, plastic, such as PEEK (polyether ether ketone) and in particular fiber-reinforced PEEK or elastomers, in particular rubber-like materials, or else metal.
  • the annular wear part 7 is made of metal.
  • FIG. 8 Poppet valve 1 shown has the further advantage that the wear part 7 is disposed within the height of the valve seat cover 2, so that no plate-shaped seat plate is required. This allows a greater thickness of the valve seat 7a or a lower overall height of the Poppetventils 1. In a further possible embodiment could be in the in FIG. 8 Poppet valve 1 shown are also dispensed with the Fluidleitplatte 9.
  • the guide part 6, as in FIG. 5 shown, be designed as a linearly extending guide member 6, without spherical end portion 6d.
  • FIG. 9 shows a fourth embodiment of a closing valve.
  • the guide member 6 is designed hollow cylindrical.
  • the closing element 4 comprises a cylindrical guide section 4b, and the guide part 6 and the guide section 4b are adapted to one another in such a way that they form a slide bearing in the axial direction A.
  • the closing element 4 can be produced in this embodiment, particularly inexpensive and low in mass.
  • the closing element 4 is made of metal.
  • the closing element 4 is designed in two parts and comprises a closing head 4a, designed as a valve disk, and a guide section 4b, configured as a pin or a cylindrical tube.
  • the closing head 4a and the guide portion 4b are made of a different material, and preferably designed in two parts and connectable via a connection, for example a clip connection, in a simple manner.
  • the closing head 4a could, for example, be made of metal and the guide section 4b made of a plastic.
  • FIG. 10 shows a fifth embodiment in which the closing element 4, in comparison to the in FIG. 9 illustrated embodiment, also outside the guide part 6 is guided by an outer guide 4h.
  • the in FIG. 10 4 shown on the guide portion 4b are omitted, so that the closing element is guided only by the outer guide 4h.
  • FIG. 11 shows a sixth embodiment in which the spring 5 is designed as a parallel spiral spring or coil spring.
  • the FIG. 12 shows a further embodiment of a compression spring 5 with interior 5c, wherein the compression spring 5 comprises a plurality of disc springs, which are successively arranged in a stack in the direction of the axis A following.
  • the FIG. 13 shows a further embodiment of a compression spring 5 with interior 5c, wherein the compression spring 5 is designed as a rubber spring.
  • the inventive Poppetventil 1 allows to use springs 5, which have a larger outer diameter compared to known Poppet valves.
  • the larger spring diameter provides the advantage that the stresses in the spring are considerably reduced.
  • spring constant and material, the stress in a cylindrical spring depends on the mean diameter of the spring.
  • the Poppetventile 1 according to the invention have a much larger average spring diameter, so that the springs used 5 have a lower voltage, and ultimately a lower wear.
  • the inventive Poppet valve thus has the advantage that springs 5 can be used with a smaller number of turns, so that advantageously the overall height of the entire Poppetventils can be reduced.
  • FIG. 14 shows a seventh embodiment of a single valve element V of a Poppetventils, right in longitudinal section and left partially in longitudinal section.
  • the guide part 6 is fastened to the catcher 3 via a fastening section 6k.
  • the guide member 6 comprises a larger diameter portion 6h, a heel 6i, and then a smaller diameter portion 6g.
  • the guide part 6 comprises a base part 6e, starting from which a hollow cylindrical outer guide 6f is arranged.
  • the guide member 6 includes a Stirnddlingkla end side 6c.
  • the closing element 4 comprises a first guide interior 4c, which rests against the section 6g with a smaller diameter, and comprises a second guide interior 4n, which rests against the outer guide 6f, so that the closing element 4 rests against the sections 6g and 6f on the outer guide.
  • the spring 5 is arranged in the second guide interior 4n.
  • the stroke in the axial direction A is limited by the second stop 4h and the end face 6c of the guide part and / or by the shoulder 6i and the third stop 4k and / or by the first stop 4d and the surface of the catcher 3.
  • the closing element 4 particularly well in the linear direction, that is guided in the direction of the axis A.
  • FIG. 15 shows a perspective longitudinal section of a closing element 4, comprising a closing head 4a with a maximum outer diameter 4p, wherein the closing head 4a comprises a concave portion 4i.
  • the closing element 4 comprises a guide interior 4c with a second stop 4h, a first stop 4d with an increased wall thickness, and a spring support 4f.
  • FIG. 16 shows a perspective longitudinal section of a closing element 4, comprising a closing head 4a with a maximum outer diameter 4p, wherein the closing head 4a comprises a concave portion 4i.
  • the closing element 4 comprises a guide interior 4c with a second stop 4h, a second guide interior 4n with a larger inner diameter, so that a third stop 4k is formed, a first stop 4d with increased wall thickness and a spring support 4f.
  • FIG. 17 shows a perspective longitudinal section of a closing element 4, comprising a closing head 4a with a maximum outer diameter 4p, wherein the closing head 4a is connected via a connecting part 41 with the guide portion 4c.
  • the guide section 4c comprises a second stop 4h, which closes off the guide section 4c against the gas-tight top.
  • the guide portion 4c may have the same inner diameter along the entire length, or as in FIG FIG. 17 shown having a shoulder 4k, so that the second guide inner space 4n has a smaller inner diameter than the previous guide inner space 4c.
  • Locking element 4 shown is preferably made of metal, preferably made of a thin metal, so that the closing element 4 advantageously has a low weight and advantageously a high wear resistance.
  • FIG. 18 shows a perspective longitudinal section of a closing element 4, comprising a closing head 4a with a maximum outer diameter 4p.
  • the closing element 4 comprises a guide interior 4c with a second stop 4h.
  • the closing head 4a is connected to the base part 4o via a spring section 4m, wherein the base part 4o also forms the first stop 4d.
  • the spring portion 4m is preferably made of the same material as the rest of the closing element, 4, wherein the closing element 4 preferably consists of one piece.
  • the recesses in the outer wall of the spring sections 4m can be configured in different ways to give the closing element 4 between the closing head 4a and the base part 4o a resilient property in the axial direction A.
  • FIG. 19 shows a perspective longitudinal section through a guide member 6 and on the guide member in the axial direction A displaceable, linearly movable mounted closing element 4.
  • the guide member 6 also includes a stop 61, which is arranged below a mounting portion 6k.
  • the stop 61 serves as a stop to limit the insertion depth of the attachment portion 6k in the catcher 3.
  • the attachment portion 6k is surrounded by a spring portion 6m which has resilient properties in the axial direction A.
  • the guide member 6 could also be made in one piece, wherein the Material of the spring portion 6m could be made of a softer and / or more elastic material than the rest of the guide member. 6
  • FIG. 20 shows a perspective longitudinal section through a guide member 6 comprising a projecting in the radial direction stop member 61, a mounting portion 6k and a guide portion 6b with a cylindrical surface 6a and end face 6c.
  • FIG. 21 shows that already in FIG. 6 illustrated valve V, wherein the valve V in FIG. 21 is arranged in a vertically extending valve body 2.
  • FIG. 22 shows a longitudinal section through a piston compressor comprising a cylinder 15, a piston 16, and a piston rod 17, wherein the piston 16 is mounted reciprocally movable in the direction of the center axis M of the cylinder 15.
  • a hollow-cylindrical valve body 2 is arranged, with a plurality of valves V, which are arranged spaced apart from one another in the circumferential direction.
  • the individual valves V are, for example, as in FIG. 21 designed configured, wherein the holding plate 7 is designed in a hollow cylindrical shape and the valve body 2 surrounds.
  • a catcher 3 is required, which is connected to the valve body 2 or the cylinder 15, and which encloses the valve body 2 in an advantageous embodiment.
  • FIG. 21 shows a longitudinal section through a piston compressor comprising a cylinder 15, a piston 16, and a piston rod 17, wherein the piston 16 is mounted reciprocally movable in the direction of the center axis M of the cylinder 15.
  • valve V which is arranged as a pressure valve V D , at which the inlet channels 2a begin on the inside of the cylinder 15, so that the closing elements 4 are arranged against the outside.
  • the Intake passages 2a preferably extend radially to the center axis M of the cylinder 15.
  • the valves V may also be arranged in reverse, as in FIG FIG. 22 shown at the top right, in which the inlet channels 2a start on the outside, and the closing elements 4 are arranged against the inside of the cylinder 15, so that the valve V acts as a suction valve V S.
  • the valve body 2 could also be designed as part of the cylinder 15, for example in that the cylinder 15 has bores which form the inlet channel 2a and preferably also the valve seat 7a.
  • valves V can be arranged in the valve body 2 or in the cylinder 15 as required as pressure valves V D and / or as suction valves V S.
  • pressure valves V D and suction valves V S There are a large number of possibilities for arranging the pressure valves V D and the suction valves V S. For example, in FIG. 22 shown above, in the direction of the center axis M also below the cylinder 15, a further hollow-cylindrical valve body 2 may be arranged containing valves V, in particular if the cylinder 15 is designed double-acting.
  • the valves V can be arranged in the valve body 2 or in the cylinder 15 as required as pressure valves V D and / or as suction valves V S.
  • suction valves V S There are a large number of possibilities for arranging the pressure valves V D and the suction valves V S.
  • each second of the circumferentially spaced valves V be configured as a pressure valve V D , and each second as a suction valve V S , so in succession in the circumferential direction in each case a pressure valve V D and subsequently a suction valve Vs is arranged.
  • all pressure valves V D or all suction valves V S could be arranged in the circumferential direction to the center axis M along a predetermined angle of for example 90 °, 180 ° or 360 °. So could in FIG.
  • valves V can also be arranged offset in the direction of the center axis M, so that, for example, the pressure valves V D are arranged along a predetermined angle of, for example, 90 °, 180 ° or 360 °, and so that the suction valves V S along a predetermined Angle of, for example, 90 °, 180 ° or 360 °, but arranged offset in the direction of the center axis M.
  • the pressure valves V D and suction valves V S could also be arranged offset one after the other in the circumferential direction in the direction of the center axis M.
  • the pressure valves V D and suction valves V S could be arranged in groups by, for example, in the circumferential direction 2 valves V as pressure valves V D and in each case the third valve V is designed as a suction valve Vs.
  • FIG. 23 shows a further embodiment of a Poppetventils 1 comprising a respective valve body 2 with a plurality of or arranged therein pressure valves V D.
  • the Poppetventil 1 is connected via a so-called Ventilnest 18 and an outlet channel 18 a fluidly connected to the interior formed of a cylinder 15 and a piston 16.
  • the exemplary embodiments show only pressure valves V D.
  • suction valves V S and pressure valves V D can be arranged in the Poppet valve 1 or in the valve body 2, so that an inlet and outlet channel 18a connects the cylinder interior with the valve nest 18 and the Poppet valve 1.
  • valve body 2 may be configured in a variety of embodiments, so that the in FIG. 2 and 23 illustrated embodiments of valve body 2 are to be understood only by way of example.
  • An advantage of the poppet valve 1 according to the invention can be seen in that the valve body 2 can have a multiplicity of shapes, in which the valves V, as shown in the exemplary embodiments, are arranged.
  • the poppet valve 1 according to the invention can have suction or pressure valves V S , V D or a combination of the two valves as required.
  • the Poppetventil 1 for a reciprocating compressor comprises a catcher 3, a valve body 2 with a plurality of inlet channels 2a, each inlet channel 2a opens into a valve seat 7a, and comprises a plurality of in an axial direction A movable closing elements 4, wherein each inlet channel 2a is associated with a closing element 4, and wherein the valve seat 7a in the axial direction A opposite the associated closing element 4 is arranged, such that the valve seat 7a is closed by the closing element 4, wherein between the catcher 3 and the closing element 4 a Spring 5 is arranged to effect on the closing element 4 a biasing force directed toward the valve seat 7a, wherein on the catcher 3, a guide member 6 extending in the axial direction A is arranged, on which the closing member 4 is movably guided in the axial direction A, wherein the Closing element 4 a closing head 4a and a Guide section 4b, wherein the closing head 4a and the guide portion 4b in the axial direction A follow one after another,
  • the Poppetventil is preferably designed such that the circumferential center M F comes to rest at least when fully open closing element 4 within the course of the guide member 6, as for example in FIG. 6 is shown.
  • the Poppetventil is preferably designed such that the circumferential center M F comes to lie within the course of the guide member 6 even when the closing element 4 is closed.
  • the Poppetventil is preferably designed such that the end face 4g is designed to extend substantially or partially tapered or arrow-shaped, as for example in FIG. 5, 6 or 16 is shown.
  • the Poppetventil is preferably configured such that the surface of the end face 4g at least in the region of the periphery with respect to a normal to the axial direction A has a pitch angle ⁇ of at least 10 °, as for example in FIG. 11 is shown.
  • the Poppetventil is preferably configured such that the end face 4g along the surface, from the periphery to the center, at least section-wide has a concave portion 4i, as for example in the FIGS. 6 . 15 and 16 is shown.
  • the Poppetventil is preferably configured such that the guide portion 4b has an outer contour with in the direction of the catcher 3 toward increasingly smaller diameter, as for example in the Figures 2 . 5 or 6 is shown.
  • the guide section 4b thereby has a lower flow resistance.
  • the Poppet valve is preferably designed such that the guide part 6 and the guide portion 4b have a round cross section, so that they together form a longitudinal guide and in particular a sliding bearing.
  • the poppet valve is preferably designed such that the guide section 4b comprises a first guide interior 4c with a smaller inner cross section and in the axial direction A subsequently comprises a second guide interior 4n with a larger inner cross section, as for example in FIG FIG. 14 is shown.
  • the poppet valve is preferably configured such that between the first guide interior 4c to the second guide interior 4n a transition point is formed, in particular as a constriction or as a shoulder, as for example in FIG. 14 is shown.
  • the Poppetventil is preferably configured such that the guide member 6 has a smaller diameter portion 6g and a larger diameter portion 6h, which abut the first and second guide inner 4c, 4n, as for example in FIG. 14 is shown.
  • the poppet valve is preferably designed such that the guide section 4b has a first stop 4d with an increased wall thickness at the end opposite the closing head 4a, as shown for example in FIG FIG. 15 or 16 is shown.
  • the Poppetventil is preferably designed such that the closing head 4a to the guide portion 4b out with respect to the axial direction A circumferentially extending support 4f for supporting the spring 5, as shown for example in FIG. 15 or 16 is shown.
  • the Poppetventil is preferably designed such that the closing element 4 below the guide portion 4b has a extending in the axial direction A spring portion 4m, as for example in FIG. 18 is shown.
  • the poppet valve is preferably designed such that a closure 4h projecting in the axial direction A over the surface of the closing head 4a is arranged on the closing head 4a, the interior of which forms part of the guide interior 4c, as is shown in FIG FIG. 18 is shown.
  • the poppet valve is preferably configured such that the closing head 4a substantially consists of an annular sealing surface arranged to abut the valve seat 7a, the closing head 4a being connected to the guide portion 4b via a connecting part 41, as for example in FIG. 17 is shown.
  • the closing element 4 for a poppet valve 1 of a reciprocating compressor comprises a closing head 4a and a guide section 4b, the closing head 4a and the guide section 4b successively following in an axial direction A, the closing element 4 starting from the guide section 4b extending inside the closing element 4 in the axial direction A toward the closing head 4a extending guide inner space 4c, wherein the closing head 4a has an end face 4g, which widens in the axial direction A to the guide portion 4b up to a maximum extent 4q, wherein the maximum circumference 4q has a circumferential center M F , and wherein the guide interior 4c extends at least so far in the direction of the closing head 4a, that the circumferential center M F comes to rest within the guide interior 4c.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Lift Valve (AREA)
  • Compressor (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Details Of Reciprocating Pumps (AREA)

Description

Die Erfindung betrifft ein Poppetventil für einen Kolbenkompressor sowie einen Kolbenkompressor mit einem derartigen Poppetventil.The invention relates to a Poppetventil for a reciprocating compressor and a reciprocating compressor with such a Poppetventil.

Stand der TechnikState of the art

Die Druckschriften US2010/0090149A1 und EP2703647A1 offenbaren je ein Poppetventil für einen Kompressor. Diese Poppetventile weisen einen relativ hohen Verschleiss auf. Zudem weist dieses Poppetventil einen relativ hohen Druckverlust auf. Die Druckschrift US4489752 offenbart ein weiteres Poppetventil für einen Kompressor. Auch dieses Poppetventil weist einen relativ hohen Verschleiss und einen immer noch relativ hohen Druckverlust auf.The pamphlets US2010 / 0090149A1 and EP2703647A1 each reveal a poppet valve for a compressor. These Poppet valves have a relatively high wear. In addition, this Poppetventil has a relatively high pressure loss. The publication US4489752 discloses another poppet valve for a compressor. Also this Poppet valve has a relatively high wear and a still relatively high pressure loss.

Darstellung der ErfindungPresentation of the invention

Aufgabe der Erfindung ist es ein Poppetventil für einen Kolbenkompressor auszugestalten, das vorteilhaftere Betriebseigenschaften aufweist.The object of the invention is to design a Poppet valve for a reciprocating compressor, which has more advantageous operating characteristics.

Diese Aufgabe wird gelöst mit einem Poppetventil aufweisend die Merkmale von Anspruch 1. Die Unteransprüche 2 bis 18 betreffen weitere, vorteilhafte Ausgestaltungen der Erfindung.This object is achieved with a Poppetventil having the features of claim 1. The dependent claims 2 to 18 relate to further advantageous embodiments of the invention.

Die Aufgabe wird insbesondere gelöst mit einem Poppetventil für einen Kolbenkompressor, umfassend einen Fänger, einen Ventilkörper mit einer Mehrzahl von Einlasskanälen, wobei jeder Einlasskanal in einen Ventilsitz mündet, sowie umfassend eine Mehrzahl von in einer axialen Richtung beweglichen Schliesselementen, wobei jedem Einlasskanal ein Schliesselement zugeordnet ist, und wobei der Ventilsitz in axialer Richtung gegenüber liegend dem zugeordneten Schliesselement angeordnet ist, derart, dass der Ventilsitz durch das Schliesselement verschliessbar ist, wobei zwischen dem Fänger und dem Schliesselement eine Feder angeordnet ist, um auf das Schliesselement eine zum Ventilsitz hin ausgerichtete Vorspannkraft zu bewirken, wobei die Feder einen Innenraum umschliesst, und wobei am Fänger ein in axialer Richtung verlaufendes Führungsteil angeordnet ist, welches sich bis zu einem Führungsteilende erstreckt, wobei das Schliesselement am Führungsteil in axialer Richtung beweglich, insbesondere gleitend gelagert ist, wobei die Feder das Führungsteil sowie das Schliesselement in axialer Richtung entlang eines Teilabschnittes von aussen umschliesst, sodass sowohl das Führungsteil als auch das Schliesselement entlang dieses Teilabschnittes innerhalb des Innenraumes der Feder angeordnet sind, und wobei das vom Fänger ausgehende Führungsteil sich anschliessed an den Teilabschnitt weiter in axialer Richtung bis zum Führungsteilende erstreckt.The object is achieved in particular with a poppet valve for a reciprocating compressor, comprising a catcher, a valve body with a plurality of inlet channels, each inlet channel opening into a valve seat, and comprising a plurality of closing elements movable in an axial direction, wherein each inlet channel is associated with a closing element is, and wherein the valve seat is arranged in the axial direction opposite the associated closing element, such that the valve seat is closable by the closing element, wherein between the catcher and the closing element, a spring is arranged to the closing element to the valve seat aligned biasing force to effect, wherein the spring surrounds an interior, and wherein the catcher is arranged in the axial direction of a guide member which extends up to a guide part end, wherein the closing element on the guide part in the axial direction movable, is slidably mounted in particular, wherein the spring surrounds the guide member and the closing element in the axial direction along a portion of the outside, so that both the guide member and the closing element along this section are arranged within the interior of the spring, and wherein the outgoing from the catcher guide member followed by the section further in the axial direction extends to the guide part end.

Der Ventilkörper kann je nach Erfordernis unterschiedliche Bauformen aufweisen, und beispielsweise als Ventilsitzdeckel, als hohlzylinderförmiger Körper oder als Zylinder ausgestaltet sein.Depending on requirements, the valve body can have different designs, and can be designed, for example, as a valve seat cover, as a hollow cylindrical body or as a cylinder.

Beim erfindungsgemässen Poppetventil ist das Schliesselement in der bevorzugten Ausgestaltung an einem zumindest teilweise im Innern des Schliesselements verlaufenden Führungsteil in einer axialen Richtung beweglich, vorzugsweise linear beweglich, und vorzugsweise gleitend gelagert. Das Schliesselement kann, abhängig von der Ausführungsform, durch eine Innenführung oder ein Aussenführung in linearer beziehungsweise in axialer Richtung geführt sein, Zudem ist sowohl das Führungsteil als auch das Schliesselement in axialer Richtung entlang eines Teilabschnittes innerhalb des Innenraumes der Feder angeordnet. Das erfindungsgemässe Poppetventil weist den Vorteil auf, dass die Haltestruktur eines Fängers, welcher das Führungsteil hält, sehr klein ausgestaltet sein kann, insbesondere wenn das Schliesselement innengeführt ist, und wenn die Feder zum Fänger hin einen sich verjüngenden Aussenquerschnitt aufweist. Zudem ist es möglich, den Zwischenraum zwischen den Führungsteilen relativ gross auszugestalten. Dies ermöglicht es, den Fänger mit grossen Zwischenräumen zu versehen, insbesondere mit grösseren, bauteilfreien Zwischenräumen, was den Vorteil ergibt, dass das durchströmende Fluid einen geringen Strömungswiderstand aufweist und dass das erfindungsgemässe Poppetventil einen geringen Druckabfall aufweist. Beim erfindungsgemässen Poppetventil ist die auf das Schliesselement wirkende Feder derart angeordnet, dass die Feder das Führungsteil sowie das Schliesselement in axialer Richtung entlang eines Teilabschnittes von aussen umschliesst, sodass sowohl das Führungsteil als auch das Schliesselement entlang dieses Teilabschnittes innerhalb des Innenraumes der Feder angeordnet ist. Das erfindungsgemässe Poppetventil weist den Vorteil auf, dass dieses in einer vorteilhaften Ausgestaltung, im Vergleich zu aus dem Stand der Technik bekannten Poppetventilen, eine Feder mit grösserem Durchmesser aufweist. Ein grösserer Durchmesser hat zur Folge, dass in der Feder geringere Spannungen auftreten, was den Verschleiss reduziert und die Lebensdauer der Feder erhöht. In einer besonders vorteilhaften Ausgestaltung weist die Feder einen derart grossen Aussendurchmesser auf, dass die Feder nur an einer Auflage des Schliesselements am Schliesselement aufliegt, ansonsten jedoch keine Berührung mit dem Schliesselement aufweist. Dadurch wird der Verschleiss von Feder und Schliesselement zusätzlich reduziert. Durch die aussenliegende Feder, die eine Umströmung der Windungen zulässt, wird der Bauraum im Vergleich zu einem konventionellen Poppetventil, bei dem dieser Raum der Strömung gar nicht zur Verfügung steht, besser ausgenutzt, d.h. der Strömungsquerschnitt im Bereich des Fängers wird erheblich vergrössert. Dies führt zu niedrigeren Druckverlusten. Bei einer besonders vorteilhaften Gestaltung kann zusätzlich auch die Feder selbst in Proportionen, Windungszahl, Drahtquerschnitt usw. strömungsgünstig gestaltet werden. Die auf das Schliesselement wirkende Feder, welche das Führungsteil sowie das Schliesselement in axialer Richtung entlang eines Teilabschnittes von aussen umschliesst, weist somit vorteilhafterweise einen geringen Strömungswiderstand auf, sodass ein durchströmendes Fluid einen geringen Druckverlust erfährt. Das erfindungsgemässe Poppetventil weist somit in einer bevorzugten Ausgestaltung sowohl einen geringen Druckverlust als auch einen geringen Verschleiss auf, was einen kostengünstigen und zuverlässigen Betrieb ermöglicht. Das erfindungsgemässe Poppetventil weist den weiteren Vorteil auf, dass die Schliesselemente und Federn einfach und kostengünstig ersetzt werden können.In the case of the Poppet valve according to the invention, in the preferred embodiment the closing element is movable in an axial direction, preferably linearly movable, and preferably slidably mounted on an at least partially guiding element in the interior of the closing element. Depending on the embodiment, the closing element can be guided by an inner guide or an outer guide in a linear or in an axial direction. In addition, both the guide part and the closing element are arranged in the axial direction along a partial section within the interior of the spring. The Poppet valve according to the invention has the advantage that the retaining structure of a catcher, which holds the guide member, can be made very small, especially when the closing element is guided inside, and when the spring has a tapered outer cross-section towards the catcher. In addition, it is possible to make the gap between the guide parts relatively large. This makes it possible to provide the catcher with large gaps, in particular with larger, component-free spaces, which has the advantage that the fluid flowing through has a low flow resistance and that the Poppetventil invention has a low pressure drop. When Poppetventil according to the invention, the spring acting on the closing element is arranged such that the spring surrounds the guide member and the closing element in the axial direction along a portion of the outside, so that both the guide member and the closing element along this portion is disposed within the interior of the spring. The Poppet valve according to the invention has the advantage that in an advantageous embodiment, in comparison to known from the prior art Poppet valves, a spring with a larger diameter having. A larger diameter results in lower stresses in the spring, which reduces wear and increases the life of the spring. In a particularly advantageous embodiment, the spring has such a large outer diameter that the spring rests only on a support of the closing element on the closing element, but otherwise has no contact with the closing element. As a result, the wear of spring and closing element is additionally reduced. By the outside spring, which allows a flow around the windings, the space is compared to a conventional Poppetventil, in which this space of flow is not available, better utilized, ie the flow cross-section in the catcher is significantly increased. This leads to lower pressure losses. In a particularly advantageous embodiment, in addition, the spring itself in proportions, number of turns, wire cross-section, etc. are designed streamlined. The force acting on the closing element spring, which surrounds the guide member and the closing element in the axial direction along a portion of the outside, thus advantageously has a low flow resistance, so that a fluid flowing through experiences a low pressure drop. The Poppet valve according to the invention thus has both a low pressure loss and a low wear in a preferred embodiment, which allows a cost-effective and reliable operation. The inventive Poppet valve has the further advantage that the closing elements and springs can be easily and inexpensively replaced.

Als Federn sind Druckfedern geeignet, welche in einer Längsrichtung verlaufen, und welche einen Innenraum aufweisen, in welchem das Führungsteil und das Schliesselement zumindest teilweise angeordnet werden können. Besonders geeignet ist eine in Längsrichtung verlaufende Spiralfeder bzw. Schraubenfeder mit einem in Längsrichtung verlaufenden Innenraum. In einer besonders vorteilhaften Ausgestaltung weist die Feder in axialer Richtung einen zunehmenden Durchmesser auf, wobei die Feder besonders bevorzugt konusförmig bzw. kegelförmig ausgestaltet ist. Diese konus- bzw. kegelförmige Ausgestaltung, in der Draufsicht spiralförmig, weist in einer besonders vorteilhaften Ausgestaltung den Vorteil auf, dass sich die einzelnen Windungen der Feder, insbesondere auch bei grossem Federweg, gegenseitig nicht oder nur geringfügig berühren, was den Verschleiss der Feder zusätzlich reduziert. Zudem erfordert eine derartige Feder eine geringere Bauhöhe des Poppetventils, was unter anderem den Vorteil ergibt, dass der Schadraum im Kompressor kleiner wird.
Die Feder kann in einer Vielzahl von Möglichkeiten ausgestaltet sein, beispielsweise auch als eine Mehrzahl von in Längsrichtung nacheinander angeordneten Tellerfedern mit einem Innenraum, oder eine hohlzylinderförmige Gummifeder.As springs compression springs are suitable, which extend in a longitudinal direction, and which have an interior, in which the guide member and the closing element can be arranged at least partially. Particularly suitable is a longitudinally extending coil spring or coil spring having a longitudinally extending interior. In a particularly advantageous embodiment, the spring in the axial direction to an increasing diameter, wherein the spring is particularly preferably configured conical or conical. This conical or conical configuration, spiraling in plan view, has the advantage in a particularly advantageous embodiment that the individual turns of the spring, especially even with a large spring travel, not or only slightly touch each other, which in addition to the wear of the spring reduced. In addition, such a spring requires a smaller height of Poppetventils, which, inter alia, has the advantage that the dead space in the compressor is smaller.
The spring can be designed in a variety of ways, for example, as a plurality of longitudinally successively arranged disc springs with an interior, or a hollow cylindrical rubber spring.

In einer besonders vorteilhaften Ausgestaltung weist das erfindungsgemässe Poppetventil ein Schliesselement auf mit einer zum Ventilsitz hin zugewandte Stirnseite, wobei sich die Stirnseite in axialer Richtung zum Fänger hin bis zu einem maximalen Umfang erweitert, wobei der maximale Umfang einen Umfangsmittelpunkt aufweist, und wobei der Umfangsmittelpunkt zumindest bei vollständig geöffnetem Schliesselement innerhalb des Verlaufs des Führungsteils zu liegen kommt. Dies ergibt eine besonders vorteilhafte Linearführung des Schliesselementes und reduziert den Verschleiss des Schliesselementes, insbesondere wenn Kräfte und Drehmomente am Schliesselement angreifen. In einer weiteren, vorteilhaften Ausgestaltung ist der Umfangsmittelpunkt auch bei geschlossenem Schliesselement innerhalb des Verlaufs des Führungsteils liegend angeordnet.In a particularly advantageous embodiment, the poppet valve according to the invention has a closing element with an end face facing the valve seat, the end face expanding in the axial direction towards the catcher to a maximum extent, the maximum circumference having a circumferential center, and the circumferential center at least comes to rest within the course of the guide member at fully open closing element. This makes a special advantageous linear guide of the closing element and reduces the wear of the closing element, especially when forces and torques attack the closing element. In a further advantageous embodiment of the circumferential center is arranged lying even with the closing element closed within the course of the guide member.

In einer vorteilhaften Ausführungsform könnte der Kolbenkompressor als Membrankompressor ausgestaltet sein.In an advantageous embodiment, the piston compressor could be designed as a diaphragm compressor.

Die Erfindung wird nachfolgend an Hand von Ausführungsbeispielen im Detail beschrieben.The invention will be described below with reference to exemplary embodiments in detail.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Die zur Erläuterung der Ausführungsbeispiele verwendeten Zeichnungen zeigen:

Fig. 1
eine Stirnansicht eines geschlossenen Poppetventils;
Fig. 2
einen perspektivischen Längsschnitt durch das Poppetventil gemäss Fig. 1 entlang der Schnittlinie B-B, wobei die Schliesselemente geöffnet sind;
Fig. 3
eine Unteransicht des Poppetventils gemäss Fig. 1 und 2;
Fig. 4
eine Detailansicht des Fängers gemäss Fig. 2 und 3;
Fig. 5
einen perspektivischen Längsschnitt durch ein einzelnes Ventilelement eines Poppetventils gemäss Figur 2;
Fig. 6
eine Draufsicht auf den Schnitt gemäss Fig. 5;
Fig. 7
einen perspektivischen Längsschnitt eines zweiten Ausführungsbeispiels eines Ventilelements eines Poppetventils;
Fig. 8
einen perspektivischen Längsschnitt eines dritten Ausführungsbeispiels eines Ventilelements eines Poppetventils;
Fig. 9
einen perspektivischen Längsschnitt eines vierten Ausführungsbeispiels eines Ventilelements eines Poppetventils;
Fig. 10
einen perspektivischen Längsschnitt eines fünften Ausführungsbeispiels eines Ventilelements eines Poppetventils;
Fig. 11
einen perspektivischen Längsschnitt eines sechsten Ausführungsbeispiels eines Ventilelements eines Poppetventils;
Fig. 12
ein weiteres Ausführungsbeispiel einer Druckfeder;
Fig. 13
ein weiteres Ausführungsbeispiel einer Druckfeder;
Fig. 14
einen Längsschnitt durch ein siebtes Ausführungsbeispiel eines einzelnen Ventilelementes eines Poppetventils;
Fig. 15 -18
je einen perspektivischen Längsschnitt von weiteren Ausführungsbeispielen von Schliesselementen;
Fig. 19
einen perspektivischen Längsschnitt eines Führungsteils sowie eines Schliesselements;
Fig. 20
einen perspektivischen Längsschnitt eines Führungsteils;
Fig. 21
einen Längsschnitt durch ein weiteres Ventilelement eines Poppetventils;
Fig. 22
ein Poppetventil aufweisend einen zylinderförmigen Ventilkörper mit einer Mehrzahl von Ventilen;
Fig. 23
ein Poppetventil aufweisend einen Ventilkörper mit einer Mehrzahl darin angeordneter Ventile.
The drawings used to explain the embodiments show:
Fig. 1
an end view of a closed Poppetventils;
Fig. 2
a perspective longitudinal section through the Poppetventil according Fig. 1 along the section line BB, wherein the closing elements are opened;
Fig. 3
a bottom view of the Poppetventils according Fig. 1 and 2 ;
Fig. 4
a detailed view of the catcher according Fig. 2 and 3 ;
Fig. 5
a perspective longitudinal section through a single valve element of a Poppetventils according FIG. 2 ;
Fig. 6
a plan view of the section according to Fig. 5 ;
Fig. 7
a perspective longitudinal section of a second embodiment of a valve element of a Poppetventils;
Fig. 8
a perspective longitudinal section of a third embodiment of a valve element of a Poppetventils;
Fig. 9
a perspective longitudinal section of a fourth embodiment of a valve element of a Poppetventils;
Fig. 10
a perspective longitudinal section of a fifth embodiment of a valve element of a Poppetventils;
Fig. 11
a perspective longitudinal section of a sixth embodiment of a valve element of a Poppetventils;
Fig. 12
another embodiment of a compression spring;
Fig. 13
another embodiment of a compression spring;
Fig. 14
a longitudinal section through a seventh embodiment of a single valve element of a Poppetventils;
Fig. 15 -18
each a perspective longitudinal section of further embodiments of closing elements;
Fig. 19
a perspective longitudinal section of a guide member and a closing element;
Fig. 20
a perspective longitudinal section of a guide member;
Fig. 21
a longitudinal section through another valve element of a Poppetventils;
Fig. 22
a Poppet valve comprising a cylindrical valve body having a plurality of valves;
Fig. 23
a Poppet valve comprising a valve body having a plurality of valves disposed therein.

Grundsätzlich sind in den Zeichnungen gleiche Teile mit gleichen Bezugszeichen versehen.Basically, the same parts are given the same reference numerals in the drawings.

Wege zur Ausführung der ErfindungWays to carry out the invention

Fig. 1 zeigt eine Stirnansicht eines Poppetventils 1 mit sieben Schliessventilen V, wobei jedes Schliessventil V ein Schliesselement 4 umfasst, und wobei die Schliesselemente 4 in Fig. 1 in geschlossenem Zustand sind. Das Poppetventil 1 umfasst einen als Ventilsitzdeckel ausgestalteten Ventilkörper 2 mit einer Mehrzahl von Einlasskanälen 2a. Jeder Einlasskanal 2a mündet in einen Ventilsitz 7a, wobei der Ventilsitz 7a durch je ein Schliesselement 4 verschlossen ist. Figur 2 zeigt einen Schnitt entlang der Schnittlinie B-B durch das Poppetventil 1 gemäss Figur 1, wobei die Schliesselemente 4 in Figur 2 jedoch in geöffnetem Zustand dargestellt sind. Das Poppetventil 1 umfasst zumindest den Ventilsitzdeckel 2 mit Einlasskanälen 2a, einen Fänger 3, in axialer Richtung A verlaufende Führungsteile 6, welche am Fänger 3 befestigt sind, sowie eine Mehrzahl von in axialer Richtung A an je einem Führungsteil 6 beweglich gelagerte, vorzugsweise gleitend gelagerte Schliesselemente 4. Jedes der Schliesselemente 4 ist je einem Ventilsitz 7a zugeordnet, wobei die Schliesselemente 4 in axialer Richtung A jeweils gegenüber liegend dem zugeordneten Ventilsitz 7a angeordnet sind, und wobei die Schliesselemente 4 derart in axialer Richtung A verschiebbar sind, dass der Ventilsitz 7a und damit der Eingangskanal 2a geöffnet bzw. geschlossen werden kann. Das Poppetventil 1 umfasst zudem Federn 5 um auf die Schliesselemente 4 eine zum Ventilsitz 7a bzw. zum Ventilsitzdeckel 2 hin ausgerichtete Vorspannkraft zu bewirken. Die Schliesselemente 4 werden auch als Poppet oder Ventilkegel bezeichnet. Der Fänger 3 umfasst eine Haltestruktur 3e, welche vorzugsweise senkrecht zur axialen Richtung A verläuft, wobei an der Haltestruktur 3e in axialer Richtung A verlaufende Führungsteile 6 angeordnet sind, an welchen die Schliesselemente 4 in axialer Richtung A beweglich beziehungsweise linear beweglich angeordnet sind, und vorzugsweise gleitend gelagert sind. Die Führungsteile 6 sind im dargestellten Ausführungsbeispiel hohlzylinderförmig ausgestaltet. Die Schliesselemente 4 umfassen im dargestellten Ausführungsbeispiel einen Schliesskopf 4a sowie einen Führungsabschnitt 4b, wobei das Schliesselement 4 konzentrisch ausgestaltet ist und entlang der Symmetrieachse eine Bohrung 4c aufweist, welche mit dem Führungsteil 6 ein Gleitlager ausbildet, sodass das Führungsteil 6 bezüglich dem Schliesselement 4 eine Innenführung ausbildet. Der Schliesskopf 4a umfasst zudem eine Auflage 4f, welche vorteilhafterweise flächig ausgestaltet ist. Die Feder 5 umfasst ein erstes Federende 5a sowie ein zweites Federende 5b, wobei das erste Federende 5a an der Auflage 4f anliegt, und wobei das zweite Federende 5b direkt am Fänger 3 oder an einer dazwischen angeordneten Federauflage 8 anliegt, um eine zum Ventilsitz 7a hin wirkende Vorspannkraft auf das Schliesselement 4 zu bewirken. Die Feder 5 weist einen Innenraum 5c auf. Die Feder 5 umschliesst das Führungsteil 6 sowie das Schliesselement 4 in axialer Richtung A entlang eines Teilabschnittes 4e von aussen, sodass sowohl das Führungsteil 6 als auch das Schliesselement 4 entlang dieses Teilabschnittes 4e innerhalb des Innenraumes 5c der Feder 5 angeordnet sind. Die Feder 5 weist in axialer Richtung A zum Ventilsitz 7a hin einen zunehmenden Durchmesser auf, wobei sich die Feder 5 in einer bevorzugten Ausführungsform konusförmig erweitert. Vorteilhafterweise ist die Feder 5 derart ausgestaltet, dass die Feder 5 das Schliesselement 4 nur an der Auflage 4f berührt. Die sich erweiternde Feder 5 weist den Vorteil auf, dass das zweite Federende 5b eine geringeren Durchmesser beziehungsweise eine geringere Auflagefläche aufweist als das erste Federende 5a, was zur Folge hat, dass sich im Bereich des Fängers 3 ein grösserer bauteilfreier Zwischenraum ergibt, der vom Fluid F durchströmbar ist. In Figur 2 sind die Fluidströme F1, F2 von zwei nebeneinander liegend angeordneten Ventilen V beispielhaft dargestellt. Die Fluidströme F1, F2 werden durch die Stirnseite 4p des Schliesselementes 4 quer zur axialen Richtung A abgelenkt, sodass die Fluidströme F1, F2 beispielsweise wie dargestellt dem Fänger 3 zuströmen. Die sich überkreuzenden Fluidströme F1, F2 umströmen insbesondere Teile des benachbarten Schliesselementes 4 beziehungsweise dessen Feder 5. Um diese Fluidströme F1, F2 nach Möglichkeit nicht zu behindern ist der bauteilfreie Zwischenraum, insbesondere der sich zum Fänger 3 hin erweiternde bauteilfreie Zwischenraum vorteilhaft. Besonders vorteilhaft sind die sich zum Fänger 3 hin verjüngenden Schliesselemente 4. Besonders vorteilhaft ist zudem die Anordnung der Federn 5, weil diese die Fluidströmung F1, F2 nur geringfügig, vorzugsweise vernachlässigbar geringfügig beeinflussen. Fig. 1 shows an end view of a Poppetventils 1 with seven Schliessventilen V, wherein each closing valve V comprises a closing element 4, and wherein the closing elements 4 in Fig. 1 are in the closed state. The Poppetventil 1 comprises a designed as a valve seat cover valve body 2 with a plurality of inlet channels 2a. Each inlet channel 2a opens into a valve seat 7a, wherein the valve seat 7a is closed by a respective closing element 4. FIG. 2 shows a section along the section line BB through the Poppetventil 1 according FIG. 1 , wherein the closing elements 4 in FIG. 2 However, are shown in the open state. The Poppetventil 1 comprises at least the valve seat cover 2 with inlet channels 2a, a catcher 3, in the axial direction A extending guide parts 6, which are fixed to the catcher 3, and a plurality of axially A on each guide member 6 movably mounted, preferably slidably mounted 4. each of the closing elements 4 is associated with a valve seat 7a, wherein the closing elements 4 are arranged in the axial direction A respectively opposite the associated valve seat 7a, and wherein the closing elements 4 are displaceable in the axial direction A, that the valve seat 7a and so that the input channel 2a can be opened or closed. The Poppetventil 1 also includes springs 5 to cause the closing elements 4 to a valve seat 7a and the valve seat cover 2 aligned biasing force. The closing elements 4 are also referred to as Poppet or poppet. The catcher 3 comprises a holding structure 3e, which preferably runs perpendicular to the axial direction A, wherein on the support structure 3e in the axial direction A extending guide members 6 are arranged, on which the closing elements 4 are arranged in the axial direction A movable or linearly movable, and preferably are slidably mounted. The guide members 6 are configured in the form of a hollow cylinder in the illustrated embodiment. The closing elements 4 comprise in the illustrated embodiment, a closing head 4a and a guide portion 4b, wherein the closing element 4 is concentric and along the axis of symmetry has a bore 4c, which forms a sliding bearing with the guide member 6, so that the guide member 6 with respect to the closing element 4 an inner guide formed. The closing head 4a also comprises a support 4f, which is advantageously designed flat. The spring 5 comprises a first spring end 5a and a second spring end 5b, wherein the first spring end 5a rests against the support 4f, and wherein the second spring end 5b is applied directly to the catcher 3 or to a spring support 8 arranged therebetween, by one towards the valve seat 7a effecting biasing force on the closing element 4. The spring 5 has an inner space 5c. The spring 5 encloses the guide part 6 and the closing element 4 in the axial direction A along a portion 4e from the outside, so that both the guide member 6 and the closing element 4 along this portion 4e within the interior 5c of the spring 5 are arranged. The spring 5 has an increasing diameter in the axial direction A towards the valve seat 7a, wherein in a preferred embodiment the spring 5 widens conically. Advantageously, the spring 5 is configured such that the spring 5 touches the closing element 4 only on the support 4f. The widening spring 5 has the advantage that the second spring end 5b has a smaller diameter or a smaller contact surface than the first spring end 5a, with the result that in the region of the catcher 3 a larger component-free intermediate space results, that of the fluid F can be flowed through is. In FIG. 2 the fluid flows F1, F2 of two juxtaposed valves V are exemplified. The fluid flows F1, F2 are deflected by the end face 4p of the closing element 4 transversely to the axial direction A, so that the fluid flows F1, F2 flow, for example, as shown, the catcher 3. The intersecting fluid flows F1, F2 flow around in particular parts of the adjacent closing element 4 or its spring 5. In order not to hinder these fluid flows F1, F2 as far as possible, the component-free intermediate space, in particular the component-free intermediate space widening towards the catcher 3, is advantageous. Particularly advantageous is the arrangement of the springs 5, because they affect the fluid flow F1, F2 only slightly, preferably negligibly slightly.

Das Poppetventil 1 umfasst eine Mehrzahl von Einlasskanälen 2a mit Ventilsitzen 7a, und jeweils dazu zugeordneten Schliesselementen 4 mit Federn 5, sodass das Poppetventil 1 ein vielsitziges Poppetventil, beziehungsweise ein Poppetventil 1 mit einer Mehrzahl von Schliessventilen V ausbildet.The Poppetventil 1 comprises a plurality of inlet channels 2a with valve seats 7a, and respectively associated with closing elements 4 with springs 5, so that the Poppetventil 1 a vielsitziges Poppetventil, or a Poppetventil 1 with a plurality of closing valves V is formed.

In einer besonders vorteilhaften Ausgestaltung umfasst das Poppetventil 1, wie in den Figuren 2 und 3 dargestellt, eine Sitzplatte 7, welche derart angeordnet ist, dass der Schliesskopf 4a daran anschlägt und dadurch den Einlasskanal 2a verschliesst, sodass der Ventilsitz 7a in der Sitzplatte 7 beziehungsweise durch ein Teil der Sitzplatte 7 ausgebildet ist. Die Sitzplatte 7 ist auf Grund des Ventilsitzes 7a bzw. des einwirkenden Schliesskopfs 4a ein Verschleissteil und kann vorteilhafterweise auf einfache Weise ausgetauscht werden. In einer weiteren möglichen Ausgestaltung kann auf die Sitzplatte 7 verzichtet werden, sodass der Schliesskopf 4a direkt an den Ventilsitzdeckel 2 anschlägt und der Ventilsitz 7a Teil des Ventilsitzdeckels 2 ist.In a particularly advantageous embodiment, the Poppetventil 1, as in the Figures 2 and 3 shown, a seat plate 7, which is arranged such that the closing head 4a abuts against it and thereby closes the inlet channel 2a, so that the valve seat 7a in the seat plate 7 and by a part of the Seat plate 7 is formed. The seat plate 7 is due to the valve seat 7a and the acting closing head 4a a Verschleissteil and can be advantageously replaced in a simple manner. In a further possible embodiment can be dispensed with the seat plate 7, so that the closing head 4a abuts directly on the valve seat cover 2 and the valve seat 7a is part of the valve seat cover 2.

Figur 3 zeigt das in den Figuren 1 und 2 dargestellte Poppetventil 1 in einer Unteransicht. Figur 4 zeigt den in den Figuren 2 und 3 dargestellten Fänger 3 im Detail. Der Fänger 3 weist vorteilhafterweise eine eben beziehungsweise flach verlaufende Haltestruktur 3e auf, wobei die Haltestruktur 3e wie in den Figuren 2 bis 4 dargestellt, vorzugsweise als eine Gitterstruktur ausgestaltet ist, umfassend eine Vielzahl von Streben 3b und Knoten 3a, wobei die Führungsteile 6 an den Knoten 3a angeordnet und vorteilhaferweise austauschbar befestigt sind. Vorteilhafterweise weist jeder Knoten 3a eine Bohrung 3f auf, in welcher das Führungsteil 6 befestigt ist. Die dargestellte Haltestruktur 3e weist vorzugsweise grosse Zwischenräume 3c auf, was den Vorteil ergibt, dass das über die Einlasskanäle 2a einströmende Fluid ungehindert oder im Wesentlichen ungehindert durch den Fänger 3 strömen kann, sodass ein nur sehr geringer Druckverlust entsteht. In einer vorteilhaften Ausgestaltung umfasst der Fänger 3, wie in Fig. 3 und 4 dargestellt, eine hohlzylinderförmige Aussenwand 3d, welche in axialer Richtung A verläuft und welche die Haltestruktur 3e in Umfangsrichtung umschliesst. Der Fänger 3 wirkt somit auch als Ventilschutzanordnung, in Englisch als "valve guard" bezeichnet. FIG. 3 shows that in the Figures 1 and 2 illustrated Poppetventil 1 in a bottom view. FIG. 4 shows the in the Figures 2 and 3 illustrated catcher 3 in detail. The catcher 3 advantageously has a flat or flat holding structure 3e, wherein the holding structure 3e as in the FIGS. 2 to 4 is shown, preferably designed as a grid structure comprising a plurality of struts 3b and node 3a, wherein the guide members 6 are arranged on the node 3a and advantageously exchangeably secured. Advantageously, each node 3a has a bore 3f in which the guide member 6 is fixed. The holding structure 3e shown preferably has large gaps 3c, which has the advantage that the fluid flowing in via the inlet channels 2a can flow unhindered or substantially unhindered through the catcher 3, so that only a very small pressure loss occurs. In an advantageous embodiment, the catcher 3, as in 3 and 4 illustrated, a hollow cylindrical outer wall 3d, which extends in the axial direction A and which surrounds the support structure 3e in the circumferential direction. The catcher 3 thus also acts as a valve protection arrangement, referred to in English as a "valve guard".

Die Figuren 5 und 6 zeigen ein einziges Schliessventil V des in den Figuren 1 bis 3 dargestellten Poppetventils 1 im Detail. Die Aussenflächen 2b und 7b sind an sich Schnittebenen, die zur klareren Darstellung der übrigen Merkmale jedoch nicht schraffiert dargestellt sind. Die Feder 5 weist einen Innenraum 5c auf und ist entlang des Teilabschnittes 4e derart ausgestaltet und angeordnet, dass die Feder 5 sowohl das Führungsteil 6 als auch den Führungsabschnitt 4b des Schliesselements 4 von aussen umschliesst, wobei die Feder 5 nur am ersten Federende 5a direkt mit dem Schliesselement 4 im Kontakt ist und an der Auflage 4f aufliegt beziehungsweise anliegt. Die Feder 5 ist in der Seitenansicht gemäss Figur 6 konisch verlaufend ausgestaltet, und in der Draufsicht spiralförmig verlaufend ausgestaltet, wobei die Windungen der Feder 5 vorzugsweise derart ausgestaltet sind, dass benachbarte Windungen bei einer Bewegung des Schliesselementes 4 in axialer Richtung A nicht zusammenschlagen können. Vorteilhafterweise sind die Windungen derart weit vom Führungsabschnitt 4b beabstandet, dass die Feder 5, mit Ausnahme der Auflage 4f, nicht am Schliesselement 4 reibt beziehungswiese dieses nicht berührt, was einen äusserst geringen Verschleiss der Feder 5 beziehungsweise des Führungsabschnittes 4b zur Folge hat. Die Auflage 4f kann in einer Vielzahl von Möglichkeiten ausgestaltet sein, und beispielsweise Vertiefungen zum Führen des ersten Federendes 5a aufweisen, oder Befestigungsmöglichkeinen zum Führen und/oder Halten des ersten Federendes 5a aufweisen. Das erfindungsgemässe Poppetventil 1 weist den Vorteil auf, dass ein durchströmendes Fluid F nur einen geringen Strömungswiderstand erfährt.The FIGS. 5 and 6 show a single closing valve V in the FIGS. 1 to 3 Poppet valve 1 shown in detail. The outer surfaces 2b and 7b are in themselves sectional planes, which are not shown hatched for clarity of the other features. The spring 5 has an inner space 5c and is configured and arranged along the partial section 4e such that the spring 5 surrounds both the guide part 6 and the guide section 4b of the closing element 4 from the outside, the spring 5 being directly engaged only at the first spring end 5a the closing element 4 is in contact and rests or rests on the support 4f. The spring 5 is in the side view according to FIG. 6 configured tapering, and designed to extend spirally in plan view, wherein the turns of the spring 5 are preferably designed such that adjacent turns in a movement of the closing element 4 in the axial direction A can not collapse. Advantageously, the windings are spaced so far from the guide portion 4b, that the spring 5, with the exception of the support 4f, does not rub against the closing element 4, this does not touch, which results in extremely low wear of the spring 5 or guide section 4b. The support 4f can be configured in a variety of ways, and for example depressions for guiding the first spring end 5a have, or Befestigungsmöglichkeinen for guiding and / or holding the first spring end 5a. The poppet valve 1 according to the invention has the advantage that a fluid F flowing through experiences only a low flow resistance.

Wie insbesondere aus Figur 6 ersichtlich weist das Schliesselement 4 eine zum Einlasskanal 2a hin zugewandte Stirnseite 4g auf, wobei diese Stirnseite 4g im Wesentlichen kegelförmig oder pfeilförmig verlaufend ausgestaltet ist. Die Stirnseite 4g kann in einer Vielzahl von Möglichkeiten ausgestaltet sein. Bei einem vielsitzigen Poppetventil 1, das heisst einem Poppetventil 1 umfassend eine Mehrzahl von Schliessventilen V, das in Kombination mit einem Hochdruckgaskompressor verwendet wird, ist es vorteilhaft die Stirnseite 4g aerodynamisch auszugestalten, vorteilhafterweise indem die Stirnseite 4g kegelförmig, pfeilförmig und/oder konvex verläuft und ausgehend vom Zentrum in einer sanft verlaufenden Krümmung zum Rand der Stirnseite 4g verläuft, wobei die Krümmung vorzugsweise auch konkav verlaufende Abschnitte 4i aufweisen kann. Diese Ausgestaltung reduziert den Druckverlust an der Stirnseite 4g und/oder leitet den Fluidstrom F derart quer zur Achsrichtung A, dass dieser, wie aus Figur 2 durch die Teilströme F1, F2 ersichtlich, nach dem Durchtritt durch den Ventilsitz 7a vorzugsweise durch den bauteilfreien Zwischenraum und danach durch einen Zwischenraum 3c des Fängers 3 hindurchströmt.As in particular from FIG. 6 the closing element 4 can be seen to have an end face 4g facing the inlet channel 2a, wherein this end face 4g is substantially conical or arrow-shaped running. The front side 4g can be configured in a variety of ways. In a Vielsitzigen Poppetventil 1, that is a Poppetventil 1 comprising a plurality of closing valves V, which is used in combination with a high-pressure gas compressor, it is advantageous to design the end face 4g aerodynamic, advantageously by the end face 4g conical, arrow-shaped and / or convex runs and proceeding from the center in a gently running curvature to the edge of the end face 4g, wherein the curvature may preferably also have concave portions 4i. This embodiment reduces the pressure loss at the end face 4g and / or directs the fluid flow F so transversely to the axial direction A, that this, as from FIG. 2 can be seen through the partial flows F1, F2, after passing through the valve seat 7a, preferably flows through the component-free space and then through a gap 3c of the catcher 3.

Wie aus Figur 6 ersichtlich weist das Schliesselement 4 einen Schliesskopf 4a mit einer zum Ventilsitz 7a hin zugewandte Stirnseite 4g auf, wobei sich die Stirnseite 4g beziehungsweise der in Figur 6 dargestellte Querschnitt des Schliesselements 4 in axialer Richtung A vom Einlasskanal 2a zum Fänger 3 hin bis zu einem maximalen Umfang 4q erweitert, sodass sich ein maximaler Aussendurchmesser 4p ausbildet. Der maximale Umfang 4q sowie der maximale Aussendurchmesser 4p ist beispielsweise auch in Figur 15 anschaulich dargestellt. Der maximale Aussendurchmesser 4p umfasst, wie aus Figur 6 ersichtlich, diejenigen Stellen des Schliesselements 4, welche bezüglich einer Senkrechten zur axialen Achse A den grössten Abstand zur axialen Achse A aufweisen. In Figur 6 ist zudem der Umfangsmittelpunkt MF des maximalen Umfangs 4q beziehungsweise des maximalen Aussendurchmessers 4p dargestellt. Dieser Umfangsmittelpunkt MF liegt im Führungsinnenraum 4c des Schliesselementes 4. Bei einem durch das geöffnete Ventil V durchströmenden Fluid verursachen die im Bereich des maximalen Umfang 4q angreifenden Strömungskräfte oft das grösste Drehmoment, welches am Schliesselement 4 angreift. Der Umfangsmittelpunkt MF bildet zudem den Mittelpunkt dieses angreifenden Drehmomentes.How out FIG. 6 the closing element 4 can be seen to have a closing head 4 a with an end face 4 g facing the valve seat 7 a, the end face 4 g or the one in FIG FIG. 6 shown cross-section of the closing element 4 in the axial direction A from the inlet channel 2a to the catcher 3 out to a maximum extent 4q extended, so that a maximum outer diameter 4p is formed. The maximum circumference 4q as well as the maximum outside diameter 4p is, for example, also in FIG. 15 vividly illustrated. The maximum outside diameter 4p includes, as shown FIG. 6 those positions of the closing element 4, which have the greatest distance to the axial axis A with respect to a perpendicular to the axial axis A. In FIG. 6 In addition, the circumferential center M F of the maximum circumference 4q or the maximum outside diameter 4p is shown. This circumferential center point M F is located in the guide inner space 4c of the closing element 4. In an air flowing through the open valve V Fluid the attacking in the area of maximum circumference 4q flow forces often cause the largest torque which acts on the closing element. 4 The circumferential center M F also forms the center of this attacking torque.

Das Schliesselement 4 und das Führungsteil 6 sind im Ventil V, wie in Figur 6 dargestellt, derart gegenseitig angepasst ausgestaltet und angeordnet, dass das Führungsteil 6 zum Einlasskanal 2a hin an einem Führungsteilende 6c endet, und dass der Umfangsmittelpunkt MF zumindest bei vollständig geöffnetem Schliesselement 4 innerhalb des Verlaufs des Führungsteils 6 zu liegen kommt, das heisst innerhalb der Distanz in axialer Richtung A entlang welcher sich das Führungsteil 6 erstreckt zu liegen kommt, oder in anderen Worten, dass zumindest bei vollständig geöffnetem Schliesselement 4 sich der Umfangsmittelpunkt MF in axialer Richtung A näher beim Fänger 3 befindet als das Führungsteilende 6c des Führungsteils 6. Wie in Figur 6 dargestellt ist der Umfangsmittelpunkt MF um eine Distanz D bezüglich dem Führungsteilende 6c beabstandet. Diese Distanz D ist zumindest bei vollständig geöffnetem Schliesselement grösser oder gleich 0 mm. Diese Distanz D ist vorteilhafterweise auch bei am Ventilsitz 7a anliegendem Schliesselement 4 grösser oder gleich 0 mm. Diese Ausgestaltung weist den Vorteil auf, dass der Umfangsmittelpunkt beziehungsweise der Drehpunkt MF eines am Schliesselement 4 angreifenden Drehmomentes, insbesondere eines am maximalen Umfangs 4q beziehungsweise am maximalen Aussendurchmesser 4p angreifenden Drehmomentes in einem Bereich liegt, an dem das Schliesselement 4 am Führungsteil 6 anliegt und von diesem in axialer Richtung A geführt wird. Dies reduziert oder verhindert ein Verkippen des Schliesselementes 4 bezüglich des Führungsteils 6, und dies reduziert zudem den Verschleiss des Führungsinnenraums 4c des Schliesselementes 4 sowie den Verschleiss des Führungsteils 6. Die beschriebene Anordnung gewährleistet somit eine ausgezeichnete Linearführung des Schliesselementes 4 in axialer Richtung A. Dies Linearführung ist von besonderer Bedeutung, weil am Schliesselement in geöffnetem Zustand durch die Fluidströmung F und sich ergebende Strömungsturbulenzen unterschiedliche, zeitlich veränderliche und teilweise grössere Kräfte am Schliesselement 4 angreifen, welche bestrebt sind, das Schliesselement 4 aus der Bewegung in axialer Richtung A abzulenken. Eine solche Ablenkung der Bewegung hat zur Folge, dass das Schliesselement 4 einseitig am Ventilsitz 7a anschlagen kann, was den Verschleiss an der Stirnseite 4g des Schliesselementes 4 erheblich erhöht. Zudem erhöht sich der Verschleiss im Führungsinnenraum 4c, sodass das Schliesselement 4 in axialer Richtung schlechter geführt ist, was wiederum die Stirnseite 4g schneller verschleisst. Die beschriebene Ausgestaltung des Schliesselementes in Kombination mit der Anordnung des Führungsteils 6 weist somit den Vorteil auf, dass der Verschleiss wesentlich reduziert ist.The closing element 4 and the guide part 6 are in the valve V, as in FIG. 6 represented configured and arranged mutually adapted so that the guide member 6 to the inlet channel 2a ends at a guide part end 6c, and that the peripheral center M F comes to rest at least with fully open closing element 4 within the course of the guide member 6, that is within the distance in the axial direction A along which the guide member 6 extends to lie, or in other words that at least with fully open closing element 4, the circumferential center M F in the axial direction A is closer to the catcher 3 than the guide part end 6 c of the guide member 6 in FIG. 6 shown is the circumferential center M F spaced by a distance D with respect to the guide part end 6c. This distance D is greater than or equal to 0 mm, at least when the closing element is fully open. This distance D is advantageously greater than or equal to 0 mm, even when the closing element 4 abuts the valve seat 7a. This embodiment has the advantage that the circumferential center or the pivot point M F of a torque acting on the closing element 4, in particular one at the maximum circumference 4q or at the maximum Outside diameter 4p attacking torque is in a range in which the closing element 4 abuts the guide member 6 and is guided by this in the axial direction A. This reduces or prevents tilting of the closing element 4 with respect to the guide member 6, and this also reduces the wear of the guide interior 4c of the closing element 4 and the wear of the guide member 6. The described arrangement thus ensures an excellent linear guide of the closing element 4 in the axial direction A. Dies Linear guide is of particular importance because the closing element in the open state by the fluid flow F and resulting flow turbulence attack different, time-varying and partially larger forces on the closing element 4, which endeavor to divert the closing element 4 from the movement in the axial direction A. Such a deflection of the movement has the consequence that the closing element 4 can strike the valve seat 7a on one side, which considerably increases the wear on the end face 4g of the closing element 4. In addition, the wear increases in the guide interior 4c, so that the closing element 4 is performed worse in the axial direction, which in turn wears the front 4g faster. The described embodiment of the closing element in combination with the arrangement of the guide part 6 thus has the advantage that the wear is substantially reduced.

Die Figuren 7 bis 11 zeigen weitere Ausführungsbeispiele einzelner Schliessventile V, welche bei dem in den Figuren 1 bis 3 dargestellten Poppetventil 1 verwendet werden könnten. Figur 7 zeigt ein zweites Ausführungsbeispiel eines Schliessventils, wobei das Führungsteil 6 ein kugelförmiges Endteil 6d aufweist, sodass das Schliesselement 4 bezüglich dem Führungsteil 6 nebst der Linearbewegung bzw. der Gleitbewegung zudem noch eine Kippbewegung ausführen kann. Dadurch kann sich das Schliesselement 4 in geschlossenem Zustand besonders gut an die Lage bzw. den Verlauf des Ventilsitzes 7a anpassen.The FIGS. 7 to 11 show further embodiments of individual closing valves V, which in which in the FIGS. 1 to 3 Poppet valve 1 shown could be used. FIG. 7 shows a second embodiment of a closing valve, wherein the guide member 6 has a spherical end portion 6d, so that the closing element 4th with respect to the guide member 6 in addition to the linear movement or the sliding movement also can perform a tilting movement. As a result, the closing element 4 in the closed state can adapt particularly well to the position or the course of the valve seat 7a.

Figur 8 zeigt ein drittes Ausführungsbeispiel eines Schliessventils. Unter dem Ventilsitzdeckel 2 ist eine Fluidleitplatte 9 angeordnet, welche dazu dienen, das einströmende Fluid F nach dem Passieren der Einlassöffnung 2a und dem Schliesselement 4 wieder auszurichten, vorzugsweise in eine im Wesentlichen parallel zur Achse A verlaufenden Strömungsrichtung. Vorteilhafterweise umfasst der Ventilsitzdeckel 2 eine Nut 2b, in welcher ein ringförmiges Verschleissteil 7 angeordnet ist. Das ringförmige Verschleissteil 7 weist den Vorteil auf, dass dieses besonders leicht ersetzt werden kann, und dass Materialien verwendet werden können, die für eine plattenförmige Ausgestaltung, wie in Figur 7 mit der Sitzplatte 7 dargestellt, weniger gut geeignet sind. Geeignete Materialien für das ringförmige Verschleissteil 7 sind beispielsweise Kunststoff, wie PEEK (Polyetheretherketon) und insbesondere Faserverstärktes PEEK oder Elastomere, insbesondere gummiartige Materialien, oder auch Metall. In einer vorteilhaften Ausgestaltung ist das ringförmige Verschleissteil 7 aus Metall gefertigt. Das in Figur 8 dargestellte Poppetventil 1 weist den weiteren Vorteil auf, dass das Verschleissteil 7 innerhalb der Bauhöhe des Ventilsitzdeckels 2 angeordnet ist, sodass keine plattenförmige Sitzplatte erforderlich ist. Dies ermöglicht eine grössere Dicke des Ventilsitzes 7a beziehungsweise eine geringere Bauhöhe des Poppetventils 1. In einer weiteren möglichen Ausführungsform könnte bei dem in Figur 8 dargestellten Poppetventil 1 auch auf die Fluidleitplatte 9 verzichtet werden. FIG. 8 shows a third embodiment of a closing valve. Disposed below the valve seat cover 2 is a fluid guide plate 9, which serves to align the incoming fluid F again after passing through the inlet opening 2a and the closing element 4, preferably in a direction of flow substantially parallel to the axis A. Advantageously, the valve seat cover 2 comprises a groove 2b, in which an annular wear part 7 is arranged. The annular wear part 7 has the advantage that it can be replaced particularly easily, and that materials can be used which are suitable for a plate-like configuration, as in FIG. 7 shown with the seat plate 7, less suitable. Suitable materials for the annular wear part 7 are, for example, plastic, such as PEEK (polyether ether ketone) and in particular fiber-reinforced PEEK or elastomers, in particular rubber-like materials, or else metal. In an advantageous embodiment, the annular wear part 7 is made of metal. This in FIG. 8 Poppet valve 1 shown has the further advantage that the wear part 7 is disposed within the height of the valve seat cover 2, so that no plate-shaped seat plate is required. This allows a greater thickness of the valve seat 7a or a lower overall height of the Poppetventils 1. In a further possible embodiment could be in the in FIG. 8 Poppet valve 1 shown are also dispensed with the Fluidleitplatte 9.

Zudem könnte das Führungsteil 6, wie in Figur 5 dargestellt, auch als linear verlaufendes Führungsteil 6 ausgestaltet sein, ohne kugelförmiges Endteil 6d.In addition, the guide part 6, as in FIG. 5 shown, be designed as a linearly extending guide member 6, without spherical end portion 6d.

Figur 9 zeigt ein viertes Ausführungsbeispiel eines Schliessventils. Das Führungsteil 6 ist hohlzylinderförmig ausgestaltet. Das Schliesselement 4 umfasst einen zylinderförmigen Führungsabschnitt 4b, und das Führungsteil 6 und der Führungsabschnitt 4b sind derart gegenseitig angepasst ausgestaltet, dass diese in axialer Richtung A ein Gleitlager ausbilden. Das Schliesselement 4 lässt sich bei dieser Ausführungsform besonders kostengünstig und massenarm herstellen. In einer vorteilhaften Ausgestaltung ist das Schliesselement 4 aus Metall hergestellt. In einer weiteren vorteilhaften Ausgestaltung ist das Schliesselement 4 zweiteilig ausgestaltet und umfasst einen Schliesskopf 4a, ausgestaltet als Ventilteller, und einen Führungsabschnitt 4b, ausgestaltet als ein Stift bzw. ein zylinderförmiges Röhrchen. Vorteilhafterweise sind der Schliesskopf 4a und der Führungsabschnitt 4b aus einem unterschiedlichen Material gefertigt, und vorzugsweise zweiteilig ausgestaltet und über eine Verbindung, zum Beispiel eine Clipverbindung, auf einfache Weise verbindbar. Der Schliesskopf 4a könnte beispielsweise aus Metall und der Führungsabschnitt 4b aus einem Kunststoff gefertigt sein. Im Ausführungsbeispiel gemäss Figur 9 sind der maximale Aussendurchmesser 4g sowie das Ende 6c des Führungsteils 6 wie bereits in Figur 6 beschrieben wiederum vorzugsweise derart ausgestaltet, dass die Distanz D zumindest bei vollständig geöffnetem Schliesselement 4 grösser oder gleich 0 mm ist, und vorteilhafterweise auch bei geschlossenem Schliesselement 4 grösser oder gleich 0 mm ist. FIG. 9 shows a fourth embodiment of a closing valve. The guide member 6 is designed hollow cylindrical. The closing element 4 comprises a cylindrical guide section 4b, and the guide part 6 and the guide section 4b are adapted to one another in such a way that they form a slide bearing in the axial direction A. The closing element 4 can be produced in this embodiment, particularly inexpensive and low in mass. In an advantageous embodiment, the closing element 4 is made of metal. In a further advantageous embodiment, the closing element 4 is designed in two parts and comprises a closing head 4a, designed as a valve disk, and a guide section 4b, configured as a pin or a cylindrical tube. Advantageously, the closing head 4a and the guide portion 4b are made of a different material, and preferably designed in two parts and connectable via a connection, for example a clip connection, in a simple manner. The closing head 4a could, for example, be made of metal and the guide section 4b made of a plastic. In the embodiment according to FIG. 9 are the maximum outer diameter 4g and the end 6c of the guide member 6 as already in FIG. 6 described in turn preferably configured such that the distance D is greater than or equal to 0 mm at least when fully open closing element 4, and advantageously even with closed closing element 4 is greater than or equal to 0 mm.

Figur 10 zeigt ein fünftes Ausführungsbeispiel, bei welchem das Schliesselement 4, im Vergleich zu der in Figur 9 dargestellten Ausführungsform, zudem noch aussen am Führungsteil 6 durch eine Aussenführung 4h geführt ist. In einer weiteren möglichen Ausführungsform könnte bei dem in Figur 10 dargestellten Schliesselement 4 auch auf den Führungsabschnitt 4b verzichtet werden, sodass das Schliesselement nur noch durch die Aussenführung 4h geführt ist. FIG. 10 shows a fifth embodiment in which the closing element 4, in comparison to the in FIG. 9 illustrated embodiment, also outside the guide part 6 is guided by an outer guide 4h. In a further possible embodiment could be in the in FIG. 10 4 shown on the guide portion 4b are omitted, so that the closing element is guided only by the outer guide 4h.

Figur 11 zeigt ein sechstes Ausführungsbeispiel, bei welchem die Feder 5 als parallel verlaufende Spiralfeder bzw. Schraubenfeder ausgestaltet ist. Die Figur 12 zeigt ein weiteres Ausführungsbeispiel einer Druckfeder 5 mit Innenraum 5c, wobei die Druckfeder 5 eine Mehrzahl von Tellerfedern umfasst, welche in einem Stapel in Verlaufsrichtung der Achse A nacheinander folgend angeordnet sind. Die Figur 13 zeigt ein weiteres Ausführungsbeispiel einer Druckfeder 5 mit Innenraum 5c, wobei die Druckfeder 5 als Gummifeder ausgestaltet ist. FIG. 11 shows a sixth embodiment in which the spring 5 is designed as a parallel spiral spring or coil spring. The FIG. 12 shows a further embodiment of a compression spring 5 with interior 5c, wherein the compression spring 5 comprises a plurality of disc springs, which are successively arranged in a stack in the direction of the axis A following. The FIG. 13 shows a further embodiment of a compression spring 5 with interior 5c, wherein the compression spring 5 is designed as a rubber spring.

Das erfindungsgemässe Poppetventil 1 erlaubt es, Federn 5 zu verwenden, die im Vergleich zu bekannten Poppetventilen einen grösseren Aussendurchmesser aufweisen. Der grössere Federdurchmesser ergibt den Vorteil, dass die Spannungen in der Feder beträchtlich reduziert werden. Bei gleichem Hub, Federkonstante und Material ist die Spannung in einer zylindrischen Feder abhängig vom mittleren Durchmesser der Feder. Im Vergleich zum Stand der Technik weisen die erfindungsgemässen Poppetventile 1 einen wesentlich grösseren mittleren Federdurchmesser auf, sodass die verwendeten Federn 5 eine geringere Spannung aufweisen, und letztendlich einen geringeren Verschleiss. Beim erfindungsgemässen Poppetventil 1 ist es zudem möglich Federn 5 mit geringerer Windungszahl zu verwenden, und die Spannungen in der Feder 5 trotzdem in einem tolerierbaren Bereich zu halten. Das erfindungsgemässe Poppetventil weist somit den Vorteil auf, dass Federn 5 mit geringerer Windungszahl verwendet werden können, sodass vorteilhafterweise die Bauhöhe des gesamten Poppetventils reduziert werden kann.The inventive Poppetventil 1 allows to use springs 5, which have a larger outer diameter compared to known Poppet valves. The larger spring diameter provides the advantage that the stresses in the spring are considerably reduced. At the same stroke, spring constant and material, the stress in a cylindrical spring depends on the mean diameter of the spring. Compared to the prior art, the Poppetventile 1 according to the invention have a much larger average spring diameter, so that the springs used 5 have a lower voltage, and ultimately a lower wear. In the inventive Poppetventil 1, it is also possible to use springs 5 with a smaller number of turns, and still keep the stresses in the spring 5 in a tolerable range. The inventive Poppet valve thus has the advantage that springs 5 can be used with a smaller number of turns, so that advantageously the overall height of the entire Poppetventils can be reduced.

Figur 14 zeigt ein siebtes Ausführungsbeispiel eines einzelnen Ventilelementes V eines Poppetventils, rechts im Längsschnitt und links teilweise im Längsschnitt. Das Führungsteil 6 ist über einen Befestigungsabschnitt 6k am Fänger 3 befestigt. Das Führungsteil 6 umfasst einen Abschnitt 6h mit grösserem Durchmesser, einen Absatz 6i und danach einen Abschnitt 6g mit kleinerem Durchmesser. Zudem umfasst das Führungsteil 6 ein Basisteil 6e, ausgehend vom dem eine hohlzylinderförmige Aussenführung 6f angeordnet ist. Zudem umfasst das Führungsteil 6 eine Stirnbeziehungsweise Endseite 6c. Das Schliesselement 4 umfasst einen ersten Führungsinnenraum 4c, welcher am Abschnitt 6g mit kleinerem Durchmesser anliegt, und umfasst einen zweiten Führungsinnenraum 4n, welcher an der Aussenführung 6f anliegt, sodass das Schliesselement 4 am Abschnitten 6g sowie an der Aussenführung 6f anliegt. Im zweiten Führungsinnenraum 4n ist die Feder 5 angeordnet. Der Hubweg in axialer Richtung A ist begrenzt durch den zweiten Anschlag 4h und die Stirnseite 6c des Führungsteils und/oder durch den Absatz 6i und den dritten Anschlag 4k und/oder durch den ersten Anschlag 4d und die Oberfläche des Fängers 3. Im Ausführungsbeispiel gemäss Fig. 14 ist das Schliesselement 4 besonders gut in linearer Richtung, das heisst in Verlaufsrichtung der Achse A geführt. FIG. 14 shows a seventh embodiment of a single valve element V of a Poppetventils, right in longitudinal section and left partially in longitudinal section. The guide part 6 is fastened to the catcher 3 via a fastening section 6k. The guide member 6 comprises a larger diameter portion 6h, a heel 6i, and then a smaller diameter portion 6g. In addition, the guide part 6 comprises a base part 6e, starting from which a hollow cylindrical outer guide 6f is arranged. In addition, the guide member 6 includes a Stirnbeziehungsweise end side 6c. The closing element 4 comprises a first guide interior 4c, which rests against the section 6g with a smaller diameter, and comprises a second guide interior 4n, which rests against the outer guide 6f, so that the closing element 4 rests against the sections 6g and 6f on the outer guide. In the second guide interior 4n, the spring 5 is arranged. The stroke in the axial direction A is limited by the second stop 4h and the end face 6c of the guide part and / or by the shoulder 6i and the third stop 4k and / or by the first stop 4d and the surface of the catcher 3. In the embodiment according to Fig. 14 is the closing element 4 particularly well in the linear direction, that is guided in the direction of the axis A.

Figur 15 zeigt einen perspektivischen Längsschnitt eines Schliesselementes 4, umfassend einen Schliesskopf 4a mit einem maximalen Aussendurchmesser 4p, wobei der Schliesskopf 4a einen konkav verlaufenden Abschnitt 4i umfasst. Zudem umfasst das Schliesselement 4 einen Führungsinnenraum 4c mit zweitem Anschlag 4h, einen ersten Anschlag 4d mit vergrösserter Wandstärke, sowie eine Federauflage 4f. FIG. 15 shows a perspective longitudinal section of a closing element 4, comprising a closing head 4a with a maximum outer diameter 4p, wherein the closing head 4a comprises a concave portion 4i. In addition, the closing element 4 comprises a guide interior 4c with a second stop 4h, a first stop 4d with an increased wall thickness, and a spring support 4f.

Figur 16 zeigt einen perspektivischen Längsschnitt eines Schliesselementes 4, umfassend einen Schliesskopf 4a mit einem maximalen Aussendurchmesser 4p, wobei der Schliesskopf 4a einen konkav verlaufenden Abschnitt 4i umfasst. Zudem umfasst das Schliesselement 4 einen Führungsinnenraum 4c mit zweitem Anschlag 4h, einen zweiten Führungsinnenraum 4n mit grösserem Innendurchmesser, sodass ein dritter Anschlag 4k ausbildet ist, ein erster Anschlag 4d mit vergrösserter Wandstärke sowie eine Federauflage 4f. FIG. 16 shows a perspective longitudinal section of a closing element 4, comprising a closing head 4a with a maximum outer diameter 4p, wherein the closing head 4a comprises a concave portion 4i. In addition, the closing element 4 comprises a guide interior 4c with a second stop 4h, a second guide interior 4n with a larger inner diameter, so that a third stop 4k is formed, a first stop 4d with increased wall thickness and a spring support 4f.

Figur 17 zeigt einen perspektivischen Längsschnitt eines Schliesselementes 4, umfassend einen Schliesskopf 4a mit einem maximalen Aussendurchmesser 4p, wobei der Schliesskopf 4a über ein Verbindungsteil 41 mit dem Führungsabschnitt 4c verbunden ist. Der Führungsabschnitt 4c umfasst einen zweiten Anschlag 4h, welcher den Führungsabschnitt 4c gegen oben gasdicht abschliesst. Der Führungsabschnitt 4c kann entlang der gesamten Länge denselben Innendurchmesser aufweisen, oder wie in Figur 17 dargestellt, einen Absatz 4k aufweisen, sodass der zweite Führungsinnenraum 4n einen kleineren Innendurchmesser aufweist, als der vorhergehende Führungsinnenraum 4c. Das in Figur 17 dargestellte Schliesselement 4 ist vorzugsweise aus Metall herstellt, vorzugsweise aus einem dünnen Metall, sodass das Schliesselement 4 vorteilhafterweise ein geringes Gewicht und vorteilhafterweise eine hohe Verschleissfestigkeit aufweist. FIG. 17 shows a perspective longitudinal section of a closing element 4, comprising a closing head 4a with a maximum outer diameter 4p, wherein the closing head 4a is connected via a connecting part 41 with the guide portion 4c. The guide section 4c comprises a second stop 4h, which closes off the guide section 4c against the gas-tight top. The guide portion 4c may have the same inner diameter along the entire length, or as in FIG FIG. 17 shown having a shoulder 4k, so that the second guide inner space 4n has a smaller inner diameter than the previous guide inner space 4c. This in FIG. 17 Locking element 4 shown is preferably made of metal, preferably made of a thin metal, so that the closing element 4 advantageously has a low weight and advantageously a high wear resistance.

Figur 18 zeigt einen perspektivischen Längsschnitt eines Schliesselementes 4, umfassend einen Schliesskopf 4a mit einem maximalen Aussendurchmesser 4p. Zudem umfasst das Schliesselement 4 einen Führungsinnenraum 4c mit einem zweiten Anschlag 4h. Der Schliesskopf 4a ist über einen Federabschnitt 4m mit dem Basisteil 4o verbunden, wobei das Basisteil 4o zudem den ersten Anschlag 4d ausbildet. Der Federabschnitt 4m besteht vorzugsweise aus demselben Material wie das übrige Schliesselement, 4, wobei das Schliesselement 4 vorzugsweise aus einem Stück besteht. Die Ausnehmungen in der Aussenwand des Federabschnitten 4m können auf unterschiedliche Weise ausgestaltet sein, um dem Schliesselement 4 zwischen Schliesskopf 4a und Basisteil 4o eine in axialer Richtung A federnde Eigenschaft zu verleihen. FIG. 18 shows a perspective longitudinal section of a closing element 4, comprising a closing head 4a with a maximum outer diameter 4p. In addition, the closing element 4 comprises a guide interior 4c with a second stop 4h. The closing head 4a is connected to the base part 4o via a spring section 4m, wherein the base part 4o also forms the first stop 4d. The spring portion 4m is preferably made of the same material as the rest of the closing element, 4, wherein the closing element 4 preferably consists of one piece. The recesses in the outer wall of the spring sections 4m can be configured in different ways to give the closing element 4 between the closing head 4a and the base part 4o a resilient property in the axial direction A.

Figur 19 zeigt einen perspektivischen Längsschnitt durch ein Führungsteil 6 sowie ein am Führungsteil in axialer Richtung A verschiebbar, linear beweglich gelagertes Schliesselement 4. Das Führungsteil 6 umfasst zudem einen Anschlag 61, dem nachfolgend ein Befestigungsabschnitt 6k angeordnet ist. Der Anschlag 61 dient als Anschlag um die Einschubtiefe des Befestigungsabschnittes 6k in den Fänger 3 zu begrenzen. In einer vorteilhaften Ausgestaltung ist der Befestigungsabschnitt 6k von einem Federabschnitt 6m umgeben, der in axialer Richtung A federnde Eigenschaften aufweist. Das Führungsteil 6 könnte auch einteilig gefertigt sein, wobei das Material des Federabschnittes 6m aus einem weicheren und/oder elastischeren Material gefertigt sein könnte als das übrige Führungsteil 6. FIG. 19 shows a perspective longitudinal section through a guide member 6 and on the guide member in the axial direction A displaceable, linearly movable mounted closing element 4. The guide member 6 also includes a stop 61, which is arranged below a mounting portion 6k. The stop 61 serves as a stop to limit the insertion depth of the attachment portion 6k in the catcher 3. In an advantageous embodiment, the attachment portion 6k is surrounded by a spring portion 6m which has resilient properties in the axial direction A. The guide member 6 could also be made in one piece, wherein the Material of the spring portion 6m could be made of a softer and / or more elastic material than the rest of the guide member. 6

Figur 20 zeigt einen perspektivischen Längsschnitt durch ein Führungsteil 6 umfassend ein in radialer Richtung vorstehendes Anschlagteil 61, einen Befestigungsabschnitt 6k sowie einen Führungsabschnitt 6b mit zylinderförmiger Oberfläche 6a und Stirnseite 6c. FIG. 20 shows a perspective longitudinal section through a guide member 6 comprising a projecting in the radial direction stop member 61, a mounting portion 6k and a guide portion 6b with a cylindrical surface 6a and end face 6c.

Figur 21 zeigt das bereits in Figur 6 dargestellte Ventil V, wobei das Ventil V in Figur 21 in einem vertikal verlaufenden Ventilkörper 2 angeordnet ist. FIG. 21 shows that already in FIG. 6 illustrated valve V, wherein the valve V in FIG. 21 is arranged in a vertically extending valve body 2.

Figur 22 zeigt einen Längsschnitt durch einen Kolbenkompressor umfassend einen Zylinder 15, einen Kolben 16, sowie eine Kolbenstange 17, wobei der Kolben 16 in Verlaufsrichtung der Mittenachse M des Zylinders 15 hin und her beweglich gelagert ist. Oben ist anschliessend an den Zylinder 15 ein hohlzylinderförmiger Ventilkörper 2 angeordnet, mit einer Mehrzahl von Ventilen V, welche in Umfangsrichtung gegenseitig beabstandet angeordnet sind. Die einzelnen Ventile V sind beispielsweise wie in Figur 21 dargestellt ausgestaltet, wobei die Halteplatte 7 hohlzylinderförmig ausgestaltet ist und den Ventilkörper 2 umschliesst. Zudem ist ein Fänger 3 erforderlich, welcher mit dem Ventilkörper 2 oder dem Zylinder 15 verbunden ist, und welcher den Ventilkörper 2 in einer vorteilhaften Ausgestaltung umschliesst. Figur 22 zeigt links oben ein Ventil V, das als ein Druckventil VD angeordnet ist, bei welche die Einlasskanäle 2a an der Innenseite des Zylinders 15 beginnen, sodass die Schliesselemente 4 gegen Aussen angeordnet sind. Die Einlasskanäle 2a verlaufen vorzugsweise radial zur Mittenachse M des Zylinders 15. Die Ventile V können auch umgekehrt angeordnet sein, wie in Figur 22 rechts oben dargestellt, bei dem die Einlasskanäle 2a an der Aussenseite beginnen, und die Schliesselemente 4 gegen die Innenseite des Zylinders 15 hin angeordnet sind, sodass das Ventil V als Saugventil VS wirkt. Der Ventilkörper 2 könnte auch als Teil des Zylinders 15 ausgestaltet sein, beispielsweise indem der Zylinder 15 Bohrungen aufweist, welche den Einlasskanal 2a und vorzugsweise auch den Ventilsitz 7a ausbilden. Es könnte, wie in Figur 22 oben dargestellt, in Verlaufsrichtung der Mittenachse M zudem unterhalb des Zylinders 15 ein weiterer hohlzylinderförmiger Ventilkörper 2 enthaltend Ventile V angeordnet sein, insbesondere falls der Zylinder 15 doppelwirkend ausgestaltet ist. Die Ventile V können im Ventilkörper 2 beziehungsweise im Zylinder 15 je nach Bedarf als Druckventile VD und/oder als Saugventile VS angeordnet sein. Es besteht eine Vielzahl von Möglichkeiten zur Anordnung der Druckventile VD und der Saugventile VS. So könnte beispielsweise in Figur 23 jedes zweite der in Umfangsrichtung beabstandet angeordneten Ventile V als Druckventil VD ausgestaltet sein, beziehungsweise jedes zweite als Saugventil VS, sodass in Umfangsrichtung nacheinander folgend jeweils ein Druckventil VD und nachfolgend ein Saugventil Vs angeordnet ist. In einem weiteren Ausführungsbeispiel könnten alle Druckventile VD oder alle Saugventile VS in Umfangsrichtung zur Mittenachse M entlang eines vorgegebenen Winkels von beispielsweise 90°, 180° oder 360° angeordnet sein. So könnten in Figur 22 beispielsweise alle Druckventile VD entlang von 180° und nachfolgend alle Saugventile Vs entlang von 180° angeordnet sein, sodass alle Ventile V im Zylinder 15 beziehungsweise im Ventilkörper 2 in Verlaufsrichtung der Mittenachse M auf derselben Höhe angeordnet sind. In einem weiteren Ausführungsbeispiel können die Ventile V auch in Verlaufsrichtung der Mittenachse M versetzt angeordnet sein, sodass beispielsweise die Druckventile VD entlang eines vorgegebenen Winkels von beispielsweise 90°, 180° oder 360° angeordnet sind, und sodass die Saugventile VS entlang eines vorgegebenen Winkels von beispielsweise 90°, 180° oder 360°, jedoch in Verlaufsrichtung der Mittenachse M versetzt angeordnet sind. Die Druckventile VD und Saugventile VS könnten auch in Umfangsrichtung nacheinander in Verlaufsrichtung der Mittenachse M versetzt angeordnet sein. Zudem könnten die Druckventile VD und Saugventile VS in Gruppen angeordnet sein, indem beispielsweise in Umfangsrichtung 2 Ventile V als Druckventile VD und jeweils das dritte Ventil V als Saugventil Vs ausgestaltet ist. FIG. 22 shows a longitudinal section through a piston compressor comprising a cylinder 15, a piston 16, and a piston rod 17, wherein the piston 16 is mounted reciprocally movable in the direction of the center axis M of the cylinder 15. At the top, next to the cylinder 15, a hollow-cylindrical valve body 2 is arranged, with a plurality of valves V, which are arranged spaced apart from one another in the circumferential direction. The individual valves V are, for example, as in FIG. 21 designed configured, wherein the holding plate 7 is designed in a hollow cylindrical shape and the valve body 2 surrounds. In addition, a catcher 3 is required, which is connected to the valve body 2 or the cylinder 15, and which encloses the valve body 2 in an advantageous embodiment. FIG. 22 shows left upper valve V, which is arranged as a pressure valve V D , at which the inlet channels 2a begin on the inside of the cylinder 15, so that the closing elements 4 are arranged against the outside. The Intake passages 2a preferably extend radially to the center axis M of the cylinder 15. The valves V may also be arranged in reverse, as in FIG FIG. 22 shown at the top right, in which the inlet channels 2a start on the outside, and the closing elements 4 are arranged against the inside of the cylinder 15, so that the valve V acts as a suction valve V S. The valve body 2 could also be designed as part of the cylinder 15, for example in that the cylinder 15 has bores which form the inlet channel 2a and preferably also the valve seat 7a. It could, as in FIG. 22 shown above, in the direction of the center axis M also below the cylinder 15, a further hollow-cylindrical valve body 2 may be arranged containing valves V, in particular if the cylinder 15 is designed double-acting. The valves V can be arranged in the valve body 2 or in the cylinder 15 as required as pressure valves V D and / or as suction valves V S. There are a large number of possibilities for arranging the pressure valves V D and the suction valves V S. For example, in FIG. 23 each second of the circumferentially spaced valves V be configured as a pressure valve V D , and each second as a suction valve V S , so in succession in the circumferential direction in each case a pressure valve V D and subsequently a suction valve Vs is arranged. In a further embodiment, all pressure valves V D or all suction valves V S could be arranged in the circumferential direction to the center axis M along a predetermined angle of for example 90 °, 180 ° or 360 °. So could in FIG. 22 For example, all pressure valves V D along 180 ° and subsequently all suction valves Vs be arranged along 180 °, so that all valves V in the cylinder 15 and in the valve body 2 in the direction of the center axis M at the same height are arranged. In a further exemplary embodiment, the valves V can also be arranged offset in the direction of the center axis M, so that, for example, the pressure valves V D are arranged along a predetermined angle of, for example, 90 °, 180 ° or 360 °, and so that the suction valves V S along a predetermined Angle of, for example, 90 °, 180 ° or 360 °, but arranged offset in the direction of the center axis M. The pressure valves V D and suction valves V S could also be arranged offset one after the other in the circumferential direction in the direction of the center axis M. In addition, the pressure valves V D and suction valves V S could be arranged in groups by, for example, in the circumferential direction 2 valves V as pressure valves V D and in each case the third valve V is designed as a suction valve Vs.

Die Figur 23 zeigt ein weiteres Ausführungsbeispiel eines Poppetventils 1 umfassend je einen Ventilkörper 2 mit einer Mehrzahl von daran oder darin angeordneten Druckventilen VD. Das Poppetventil 1 ist über ein sogenanntes Ventilnest 18 und einen Auslasskanal 18a Fluid leitend mit dem Innenraum gebildet aus einem Zylinder 15 und einem Kolben 16 verbunden. Die Ausführungsbeispiele zeigen nur Druckventile VD. Es könnten jedoch auch nur Saugventile VS angeordnet sein, sodass der Innenraum über einen Einlasskanal 18a und das Ventilnest 18 zum Poppetventil 1 mündet. In dem Ausführungsbeispiel gemäss Fig. 23 können im Poppetventil 1 beziehungsweise im Ventilkörper 2 sowohl Saugventile VS als auch Druckventile VD angeordnet sein, sodass ein Ein- und Auslasskanal 18a den Zylinderinnenraum mit dem Ventilnest 18 und dem Poppetventil 1 verbindet.The FIG. 23 shows a further embodiment of a Poppetventils 1 comprising a respective valve body 2 with a plurality of or arranged therein pressure valves V D. The Poppetventil 1 is connected via a so-called Ventilnest 18 and an outlet channel 18 a fluidly connected to the interior formed of a cylinder 15 and a piston 16. The exemplary embodiments show only pressure valves V D. However, it would also be possible to arrange only suction valves V S so that the interior opens via an inlet channel 18 a and the valve nest 18 to the poppet valve 1. In the embodiment according to Fig. 23 Both suction valves V S and pressure valves V D can be arranged in the Poppet valve 1 or in the valve body 2, so that an inlet and outlet channel 18a connects the cylinder interior with the valve nest 18 and the Poppet valve 1.

Der Ventilkörper 2 kann in einer Vielzahl von Ausführungsformen ausgestaltet sein, sodass die in Figur 2 und 23 dargestellten Ausführungsbeispiele von Ventilkörper 2 nur beispielhaft zu verstehen sind. Ein Vorteil des erfindungsgemässen Poppetventils 1 ist darin zu sehen, dass der Ventilkörper 2 eine Vielzahl von Formen aufweisen kann, in welchem die Ventile V, wie in den Ausführungsbeispielen dargestellt, angeordnet sind. Das erfindungsgemässe Poppetventil 1 kann je nach Erfordernis Saug- oder Druckventile VS, VD oder eine Kombination der beiden Ventile aufweisen.The valve body 2 may be configured in a variety of embodiments, so that the in FIG. 2 and 23 illustrated embodiments of valve body 2 are to be understood only by way of example. An advantage of the poppet valve 1 according to the invention can be seen in that the valve body 2 can have a multiplicity of shapes, in which the valves V, as shown in the exemplary embodiments, are arranged. The poppet valve 1 according to the invention can have suction or pressure valves V S , V D or a combination of the two valves as required.

In einer vorteilhaften Ausgestaltung umfasst das Poppetventil 1 für einen Kolbenkompressor einen Fänger 3, einen Ventilkörper 2 mit einer Mehrzahl von Einlasskanälen 2a, wobei jeder Einlasskanal 2a in einen Ventilsitz 7a mündet, und umfasst eine Mehrzahl von in einer axialen Richtung A beweglichen Schliesselementen 4, wobei jedem Einlasskanal 2a ein Schliesselement 4 zugeordnet ist, und wobei der Ventilsitz 7a in axialer Richtung A gegenüber liegend dem zugeordneten Schliesselement 4 angeordnet ist, derart, dass der Ventilsitz 7a durch das Schliesselement 4 verschliessbar ist, wobei zwischen dem Fänger 3 und dem Schliesselement 4 eine Feder 5 angeordnet ist, um auf das Schliesselement 4 eine zum Ventilsitz 7a hin ausgerichtete Vorspannkraft zu bewirken, wobei am Fänger 3 ein in axialer Richtung A verlaufendes Führungsteil 6 angeordnet ist, an welchem das Schliesselement 4 in axialer Richtung A beweglich geführt ist, wobei das Schliesselement 4 einen Schliesskopf 4a und einen Führungsabschnitt 4b umfasst, wobei der Schliesskopf 4a und der Führungsabschnitt 4b in der axialen Richtung A nacheinander folgen, wobei das Schliesselement 4, ausgehend vom Führungsabschnitt 4b, einen sich in axialer Richtung A ins Innere des Schliesselementes 4 in Richtung zum Schliesskopf 4a hin erstreckenden Führungsinnenraum 4c aufweist, in welchem auch das Führungsteil 6 verläuft, wobei der Schliesskopf 4a eine Stirnseite 4g aufweist, welche sich in axialer Richtung A, in Richtung zum Führungsabschnitt 4b hin, bis zu einem maximalen Umfang 4q erweitert, wobei der maximale Umfang 4q einen Umfangsmittelpunkt MF aufweist, und wobei sich der Führungsinnenraum 4c zumindest derart weit in Richtung zum Schliesskopf 4a hin erstreckt, dass der Umfangsmittelpunkt MF innerhalb des Führungsinnenraumes 4c zu liegen kommt.In an advantageous embodiment, the Poppetventil 1 for a reciprocating compressor comprises a catcher 3, a valve body 2 with a plurality of inlet channels 2a, each inlet channel 2a opens into a valve seat 7a, and comprises a plurality of in an axial direction A movable closing elements 4, wherein each inlet channel 2a is associated with a closing element 4, and wherein the valve seat 7a in the axial direction A opposite the associated closing element 4 is arranged, such that the valve seat 7a is closed by the closing element 4, wherein between the catcher 3 and the closing element 4 a Spring 5 is arranged to effect on the closing element 4 a biasing force directed toward the valve seat 7a, wherein on the catcher 3, a guide member 6 extending in the axial direction A is arranged, on which the closing member 4 is movably guided in the axial direction A, wherein the Closing element 4 a closing head 4a and a Guide section 4b, wherein the closing head 4a and the guide portion 4b in the axial direction A follow one after another, wherein the closing element 4, starting from the guide portion 4b, in the axial direction A inside of the closing element 4 in the direction of the closing head 4a towards extending guide interior 4c, in which also the guide member 6 extends, wherein the closing head 4a has an end face 4g, which in the axial direction A, toward the guide portion 4b out to a maximum extent 4q, wherein the maximum circumference 4q has a circumferential center M F , and wherein the guide interior 4c extends at least so far in the direction of the closing head 4a that the peripheral center M F comes to lie within the guide interior 4c.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass der Umfangsmittelpunkt MF zumindest bei vollständig geöffnetem Schliesselement 4 innerhalb des Verlaufs des Führungsteils 6 zu liegen kommt, wie dies beispielsweise in Figur 6 dargestellt ist.The Poppetventil is preferably designed such that the circumferential center M F comes to rest at least when fully open closing element 4 within the course of the guide member 6, as for example in FIG. 6 is shown.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass der Umfangsmittelpunkt MF auch bei geschlossenem Schliesselement 4 innerhalb des Verlaufs des Führungsteils 6 zu liegen kommt.The Poppetventil is preferably designed such that the circumferential center M F comes to lie within the course of the guide member 6 even when the closing element 4 is closed.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass die Stirnseite 4g im Wesentlichen oder bereichsweise kegelförmig oder pfeilförmig verlaufend ausgestaltet ist, wie dies beispielsweise in Figur 5, 6 oder 16 dargestellt ist.The Poppetventil is preferably designed such that the end face 4g is designed to extend substantially or partially tapered or arrow-shaped, as for example in FIG. 5, 6 or 16 is shown.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass die Oberfläche der Stirnseite 4g zumindest im Bereich von deren Peripherie bezüglich einer Normalen zur axialen Richtung A einen Steigungswinkel α von zumindest 10° aufweist, wie dies beispielsweise in Figur 11 dargestellt ist.The Poppetventil is preferably configured such that the surface of the end face 4g at least in the region of the periphery with respect to a normal to the axial direction A has a pitch angle α of at least 10 °, as for example in FIG. 11 is shown.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass die Stirnseite 4g entlang der Oberfläche, von der Peripherie zur Mitte hin, zumindest abschnittweite einen konkav verlaufenden Abschnitt 4i aufweist, wie dies beispielsweise in den Figuren 6, 15 und 16 dargestellt ist.The Poppetventil is preferably configured such that the end face 4g along the surface, from the periphery to the center, at least section-wide has a concave portion 4i, as for example in the FIGS. 6 . 15 and 16 is shown.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass der Führungsabschnitt 4b eine Aussenkontur mit in Richtung zum Fänger 3 hin zunehmend kleinerem Durchmesser aufweist, wie dies beispielsweise in den Figuren 2, 5 oder 6 dargestellt ist. Der Führungsabschnitt 4b weist dadurch einen geringeren Strömungswiderstand auf.The Poppetventil is preferably configured such that the guide portion 4b has an outer contour with in the direction of the catcher 3 toward increasingly smaller diameter, as for example in the Figures 2 . 5 or 6 is shown. The guide section 4b thereby has a lower flow resistance.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass das Führungsteil 6 und der Führungsabschnitt 4b einen runden Querschnitt aufweisen, sodass diese gemeinsam eine Längsführung und insbesondere ein Gleitlager ausbilden.The Poppet valve is preferably designed such that the guide part 6 and the guide portion 4b have a round cross section, so that they together form a longitudinal guide and in particular a sliding bearing.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass der Führungsabschnitt 4b einen ersten Führungsinnenraum 4c mit kleinerem Innenquerschnitt umfasst und in axialer Richtung A nachfolgend einen zweiten Führungsinnenraum 4n mit grösserem Innenquerschnitt umfasst, wie dies beispielsweise in Figur 14 dargestellt ist.The poppet valve is preferably designed such that the guide section 4b comprises a first guide interior 4c with a smaller inner cross section and in the axial direction A subsequently comprises a second guide interior 4n with a larger inner cross section, as for example in FIG FIG. 14 is shown.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass zwischen erstem Führungsinnenraum 4c zu zweitem Führungsinnenraum 4n eine Übergangsstelle ausgebildet ist, insbesondere als Verengung oder als Absatz, wie dies beispielsweise in Figur 14 dargestellt ist.The poppet valve is preferably configured such that between the first guide interior 4c to the second guide interior 4n a transition point is formed, in particular as a constriction or as a shoulder, as for example in FIG. 14 is shown.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass das Führungsteil 6 einen Abschnitt mit kleinerem Durchmesser 6g und einen Abschnitt mit grösserem Durchmesser 6h aufweist, welche am ersten beziehungsweise zweiten Führungsinnenraum 4c, 4n anliegen, wie dies beispielsweise in Figur 14 dargestellt ist.The Poppetventil is preferably configured such that the guide member 6 has a smaller diameter portion 6g and a larger diameter portion 6h, which abut the first and second guide inner 4c, 4n, as for example in FIG. 14 is shown.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass der Führungsabschnitt 4b am bezüglich dem Schliesskopf 4a entgegen gesetzten Ende einen ersten Anschlag 4d mit vergrösserter Wandstärke aufweist, wie dies beispielsweise in Figur 15 oder 16 dargestellt ist.The poppet valve is preferably designed such that the guide section 4b has a first stop 4d with an increased wall thickness at the end opposite the closing head 4a, as shown for example in FIG FIG. 15 or 16 is shown.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass der Schliesskopf 4a zum Führungsabschnitt 4b hin eine bezüglich der axialen Richtung A in Umfangsrichtung verlaufende Auflage 4f zur Auflage der Feder 5 aufweist, wie dies beispielsweise in Figur 15 oder 16 dargestellt ist.The Poppetventil is preferably designed such that the closing head 4a to the guide portion 4b out with respect to the axial direction A circumferentially extending support 4f for supporting the spring 5, as shown for example in FIG FIG. 15 or 16 is shown.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass das Schliesselement 4 nachfolgend dem Führungsabschnitt 4b einen sich in axialer Richtung A erstreckenden Federabschnitt 4m aufweist, wie dies beispielsweise in Figur 18 dargestellt ist.The Poppetventil is preferably designed such that the closing element 4 below the guide portion 4b has a extending in the axial direction A spring portion 4m, as for example in FIG. 18 is shown.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass am Schliesskopf 4a ein in axialer Richtung A über die Oberfläche des Schliesskopfs 4a vorstehender Abschluss 4h angeordnet ist, dessen Innenraum Teil des Führungsinnenraumes 4c bildet, wie dies beispielsweise in Figur 18 dargestellt ist.The poppet valve is preferably designed such that a closure 4h projecting in the axial direction A over the surface of the closing head 4a is arranged on the closing head 4a, the interior of which forms part of the guide interior 4c, as is shown in FIG FIG. 18 is shown.

Das Poppetventil ist vorzugsweise derart ausgestaltet, dass der Schliesskopf 4a im Wesentlichen aus einem ringförmig verlaufenden Dichtfläche besteht, welche derart angeordnet ist, dass diese am Ventilsitz 7a anschlägt, wobei der Schliesskopf 4a über ein Verbindungsteil 41 mit dem Führungsabschnitt 4b verbunden ist, wie dies beispielsweise in Figur 17 dargestellt ist.The poppet valve is preferably configured such that the closing head 4a substantially consists of an annular sealing surface arranged to abut the valve seat 7a, the closing head 4a being connected to the guide portion 4b via a connecting part 41, as for example in FIG. 17 is shown.

Das Schliesselement 4 für ein Poppetventil 1 eines Kolbenkompressors umfasst einen Schliesskopf 4a und einem Führungsabschnitt 4b, wobei der Schliesskopf 4a und der Führungsabschnitt 4b in einer axialen Richtung A nacheinander folgen, wobei das Schliesselement 4, ausgehend vom Führungsabschnitt 4b, einen sich im Innern des Schliesselementes 4 in axialer Richtung A in Richtung zum Schliesskopf 4a hin erstreckenden Führungsinnenraum 4c aufweist, wobei der Schliesskopf 4a eine Stirnseite 4g aufweist, welche sich in axialer Richtung A zum Führungsabschnitt 4b hin bis zu einem maximalen Umfang 4q erweitert, wobei der maximale Umfang 4q einen Umfangsmittelpunkt MF aufweist, und wobei sich der Führungsinnenraum 4c zumindest derart weit in Richtung zum Schliesskopf 4a hin erstreckt, dass der Umfangsmittelpunkt MF innerhalb des Führungsinnenraumes 4c zu liegen kommt.The closing element 4 for a poppet valve 1 of a reciprocating compressor comprises a closing head 4a and a guide section 4b, the closing head 4a and the guide section 4b successively following in an axial direction A, the closing element 4 starting from the guide section 4b extending inside the closing element 4 in the axial direction A toward the closing head 4a extending guide inner space 4c, wherein the closing head 4a has an end face 4g, which widens in the axial direction A to the guide portion 4b up to a maximum extent 4q, wherein the maximum circumference 4q has a circumferential center M F , and wherein the guide interior 4c extends at least so far in the direction of the closing head 4a, that the circumferential center M F comes to rest within the guide interior 4c.

Claims (19)

  1. A Poppet valve (1) for a piston compressor, comprising a catcher (3), a valve body (2) with a plurality of inlet channels (2a), each inlet channel (2a) opening into a valve seat (7a), and comprising a plurality of closing elements (4) movable in an axial direction (A), each inlet wherein channel (2a) being assigned a closing element (4), and wherein the valve seat (7a) being arranged opposite the associated closing element (4) in the axial direction (A) in such a way that the valve seat (7a) can be closed by the closing element (4), wherein a spring (5) being arranged between the catcher (3) and the closing element (4) in order to bring about a prestressing force directed towards the valve seat (7a) on the closing element (4), wherein the spring (5) enclosing an interior space (5c), and wherein a guide part (6) which extends in the axial direction (A) and extends as far as a guide part end (6c) is arranged on the catcher (3), wherein the closing element (4) is mounted on the guide part (6) so as to be movable in the axial direction (A), in particular slidingly, characterized in that the spring (5) surrounds the guide part (6) and the closing element (4) from the outside in the axial direction (A) along a partial section (4e), so that both the guide part (6) and the closing element (4) are arranged along this partial section (4e) within the interior (5c) of the spring (5), and that the guide part (6) starting from the catcher (3) extends further in the axial direction (A) to the guide part end (6c) following the partial section (4e).
  2. The poppet valve as claimed in claim 1, characterized in that the valve body (2) is designed in the form of a lid.
  3. The poppet valve as claimed in claim 1, characterized in that the valve body (2) extends in a circumferential direction about a central axis (M) and is of hollow cylindrical design with respect to the central axis (M).
  4. The poppet valve as claimed in claim 2 or 3, characterized in that the closing element (4) has a face side (4g) facing toward the valve seat (7a), wherein the face side (4g) widens in the axial direction (A) toward the catcher (3) up to a maximum circumference (4q), in that the maximum circumference (4q) has a circumference central point (MF), and in that the circumference central point (MF) comes to lie within the profile of the guide part (6) at least when the closing element (4) is fully open.
  5. The poppet valve as claimed in claim 4, characterized in that the circumference central point (MF) comes to lie within the profile of the guide part (6) also when the closing element (4) is closed.
  6. The poppet valve as claimed in one of the preceding claims, characterized in that the spring (5) is designed as a spiral spring.
  7. The poppet valve as claimed in claim 6, characterized in that the spring (5) has a first spring end (5a) and a second spring end (5b), and in that the spring (5) has a diameter which increases in the axial direction (A) toward the valve seat (7a), such that the first spring end (5a), directed toward the valve seat (7a), has a greater diameter than the second spring end (5b).
  8. The poppet valve as claimed in claim 7, characterized in that the spring (5) widens in conical fashion toward the valve seat (7a).
  9. The poppet valve as claimed in either of claims 7 and 8, characterized in that the closing element (4) comprises a closing head (4a), in that the closing head (4a) has a support (4f) on the side averted from the valve seat (7a), and in that the first spring end (5a) lies on the support (4f).
  10. The poppet valve as claimed in claim 9, characterized in that the closing element (4) and the spring (5) are designed in a manner adapted to one another such that the spring (5) makes contact with the closing element (4) only at the support (4f).
  11. The poppet valve as claimed in one of claims 4 to 10, characterized in that the guide part (6) is of cylindrical design, in that the closing element (4) has a bore (4c), and in that the guide part (6) and the bore (4c) are designed in a manner adapted to one another such that they form a linear bearing, in particular a plain bearing.
  12. The poppet valve as claimed in claim 11, characterized in that the closing element (4) is composed of a closing head (4a) and, following the latter in a direction of extent of the axis (A), a guide section (4b), wherein the closing element (4) is of concentric design and, in the center, has the bore (4c).
  13. The poppet valve as claimed in one of claims 4 to 10, characterized in that the guide part (6) is of hollow cylindrical design, in that the closing element (4) comprises a cylindrical guide section (4b), and in that the guide part (6) and the guide section (4b) are designed in a manner adapted to one another such that they form a linear bearing, in particular a plain bearing.
  14. The poppet valve as claimed in one of claims 4 to 13, characterized in that the valve seat (7a) is designed as a separate valve seat ring, which is arranged in the valve seat cover (2).
  15. The poppet valve as claimed in one of the preceding claims, characterized in that the guide part (6) has, toward the inlet opening (2a), a spherical end part (6d).
  16. The poppet valve as claimed in one of the preceding claims, characterized in that the catcher (3) has a holding structure (3e) on which the guide parts (6) are arranged, wherein the holding structure has intermediate spaces (3c).
  17. The poppet valve as claimed in claim 16, characterized in that the holding structure (3e) is designed as a grid structure comprising a multiplicity of struts (3b) and junctions (3a) and intermediate spaces (3c), wherein the guide parts (6) are arranged in the junctions (3a).
  18. The poppet valve as claimed in either of claims 16 and 17, characterized in that the catcher (3) has a hollow cylindrical outer wall (3d) which runs in the axial direction (A) and which encloses the holding structure (3e) in the circumferential direction.
  19. A piston compressor comprising a poppet valve (1) as claimed in one of the preceding claims.
EP16791324.3A 2015-10-12 2016-10-12 Poppet valve Active EP3362714B1 (en)

Applications Claiming Priority (2)

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EP15189427 2015-10-12
PCT/EP2016/074524 WO2017064154A1 (en) 2015-10-12 2016-10-12 Poppet valve

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JP (2) JP6521347B2 (en)
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JP2018529910A (en) 2018-10-11
US20180298890A1 (en) 2018-10-18
EP3362715A1 (en) 2018-08-22
CN108138976A (en) 2018-06-08
WO2017064155A1 (en) 2017-04-20
JP6872539B2 (en) 2021-05-19
EP3362714A1 (en) 2018-08-22
US10436203B2 (en) 2019-10-08
EP3362715B1 (en) 2019-12-04
US20180340540A1 (en) 2018-11-29
CN108138976B (en) 2021-04-09
CN108138977B (en) 2020-02-11
JP6521347B2 (en) 2019-05-29
CN108138977A (en) 2018-06-08
WO2017064154A1 (en) 2017-04-20
JP2018529911A (en) 2018-10-11

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